A method for preparing a purified styrene composition with a styrene yield of at least 80%. The method comprises providing a crude composition containing styrene, and subjecting the crude composition to at least one crystallization step. The at least one crystallization step comprises at least one static crystallization stage and at least one dynamic crystallization stage.
C07C 5/03 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant le même nombre d'atomes de carbone par hydrogénation de liaisons doubles carbone-carbone non aromatiques
C07C 7/00 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs
C07C 7/08 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par distillation à l'aide de composés auxiliaires extractive
A structured packing element for a column for at least one of mass transfer and heat exchange between a heavy fluid phase and a light fluid phase. The structured packing element comprises at least two layers of a grid comprising openings that are surrounded and separated from each other by separating elements. At least two of the layers are arranged in a longitudinal direction parallel and in touching contact with each other such that an open space extending from one end to an opposite end of the layers is provided between the layers such that at least one of the heavy fluid phase and the light fluid phase may flow therethrough. An average width of at least 50% of the separating elements between adjacent openings is at least 15 times a layer material thickness and is between 70% and 125% of an average hydraulic diameter of the adjacent openings.
B01J 19/32 - Eléments de remplissage en forme de grille ou d'éléments composés de plusieurs pièces pour constituer une unité ou un module dans l'appareil de transfert de chaleur ou de matière
4.
PLANT AND PROCESS FOR EFFICIENTLY PRODUCING A STRUCTURED CROSS-CHANNEL PACKING ELEMENT
A plant for producing a structured cross-channel packing element. The structured cross-channel packing element comprises at least two adjacent layers made of expanded metal sheets each comprising periodic deformations. The plant comprises a stretching machine configured to cut and stretch a metal sheet to form one of a plurality of first expanded metal sheets, a calibration machine configured to roll the first expanded metal sheets to a desired thickness, a sheet storage unit configured to directly receive each of the first expanded metal sheets rolled in the calibration machine, a forming machine configured to form each of the first expanded metal sheets to form the expanded metal sheets comprising periodic deformations, and a stacking machine configured to stack the expanded metal sheets comprising periodic deformations to form the structured cross-channel packing element. The sheet storage unit is configured to release the first expanded metal sheets directly to the forming machine.
B21D 43/06 - Avancement du matériau en fonction du mouvement de la matrice ou de l'outil au moyen d'un élément mécanique coopérant avec le matériau au moyen de pièces de liaison mâles ou femelles s'engageant dans des parties correspondantes de la tôle ou de la pièce analogue à travailler, p.ex. au moyen de boulons de support ou de section rainurée dans les supports
B21D 43/08 - Avancement du matériau en fonction du mouvement de la matrice ou de l'outil au moyen d'un élément mécanique coopérant avec le matériau au moyen de rouleaux
B21D 43/28 - Association de dispositifs de coupe avec des dispositifs d'alimentation, d'alignement ou de stockage
5.
GAS TO HYDROGEN PROCESS WITH CO-PRODUCTION OF CARBON
The disclosure relates in its first aspect to a process of conversion of a gaseous stream comprising methane into hydrogen (51) and carbon (25), the process is remarkable in that it comprises a step (a) of providing a first gaseous stream (3, 7); a step (b) of bromination and synthesis in which the first gaseous stream (3, 7) is put in contact with a second stream (53) comprising bromine resulting in the formation of a third stream (15) comprising methyl bromides and hydrogen bromide, and of a fourth stream (25) comprising carbon including graphite and/or carbon black; a step (c) of separation performed on the third stream (15) to recover a hydrogen bromide-rich stream (41) which is then oxidized in a step (d) to produce a stream (51) comprising hydrogen. The second aspect relates to the installation for performing the process of the first aspect and the third aspect concerns the use of bromine in such process.
A rotary pressure exchanger includes a housing and a rotor mounted within the housing for rotation about an axis of rotation defining an axial direction. The rotor extends from a first rotor end in the axial direction to a second rotor end, a plurality of channels is inside the rotor for transferring pressure from the first fluid to the second fluid, and each channel extends parallel to the axis of rotation. The plurality of channels includes a set of first channels and a set of second channels, and the rotor includes a divider arranged between the first rotor end and the second rotor end for separating the first channels from the second channels, Each first channel extends from the first rotor end in the axial direction to the divider, and each second channel extends from the second rotor end in the axial direction to the divider.
F04F 13/00 - POMPAGE DE FLUIDE PAR CONTACT DIRECT AVEC UN AUTRE FLUIDE OU PAR UTILISATION DE L'INERTIE DU FLUIDE À POMPER; SIPHONS Échangeurs de pression
7.
Centrifugal pump for pumping a multiphase suspension and a gas removal device for use in a centrifugal pump
A centrifugal pump includes a pump housing having a suspension inlet and a suspension outlet and a flow channel between the inlet and the outlet, a shaft mounted by bearings for rotation about a center axis, an impeller which is rotatable by the shaft, in alignment with the inlet and arranged to be rotated about the axis in the flow channel, and gas collecting openings for gas removal arranged in the flow channel. The inlet end of the flow channel includes a number of static vanes comprising gas collecting openings, the vanes extend radially from an inner wall of the flow channel toward the center of the flow channel and are upstream of the impeller.
A liquid distributor for a separation device is provided. The liquid distributor comprises at least one pre-distributor member positioned above a plurality of distributor members. The at least one pre-distributor member comprises at least two troughs each comprising a plurality of discharge openings. Each two of the at least two troughs are connected with each other, and a first trough has an overflow portion and at least one deflector attached to the overflow portion or a side wall of the first trough. A second trough has an upper edge. If a liquid level in the first trough reaches the overflow portion, the at least one deflector extends from above the upper edge of the second trough to the second trough so that liquid flows into the second trough from the first trough over the overflow portion or the side wall and the at least one deflector.
An energy storage system includes a vessel, an energy conversion device, and a connection line connecting the vessel with the energy conversion device. The energy conversion device includes a housing, a pump turbine, and a motor generator. The pump turbine includes a first shaft, and an impeller. The motor generator includes a second shaft, and a rotor. The second shaft is coupled to the first shaft to transmit torque between the first shaft and the second shaft. The connection line connects a low pressure opening with an opening disposed at the vessel to receive water from the vessel or discharge water into the vessel. The connection line includes a switching unit with a shut-off device and a non-return device connected in parallel, the non-return device enabling flow of the water only in a first direction from the vessel to the low pressure opening.
A rotary pressure exchanger includes a housing and a rotor. Channels are inside the rotor to transfer pressure from a first fluid to a second fluid. Each channel extends parallel to the axis of rotation, and the housing includes a first inlet port for supplying the first fluid to the channels, a first outlet port for discharging the first fluid from the channels, a second inlet port for suppling the second fluid to the channels, and a second outlet port for discharging the second fluid from the channels. The first and second inlet ports are radial inlet ports, such that the first fluid and the second fluid enter the rotor in a radial direction perpendicular to the axial direction, and the first outlet port and the second outlet port are radial outlet ports, such that the first fluid and the second fluid leave the rotor in the radial direction.
F04F 13/00 - POMPAGE DE FLUIDE PAR CONTACT DIRECT AVEC UN AUTRE FLUIDE OU PAR UTILISATION DE L'INERTIE DU FLUIDE À POMPER; SIPHONS Échangeurs de pression
11.
PROCESS AND APPARATUS FOR PREPARING PURIFIED STYRENE COMPOSITION USING DIVIDED-WALL COLUMN AND CRYSTALLIZATION UNIT
A method for preparing a purified styrene composition includes providing a crude hydrocarbon composition containing styrene, subjecting the crude hydrocarbon composition to a distillation in a divided-wall column to produce an overhead hydrocarbon stream, a bottom hydrocarbon stream and a side hydrocarbon stream and subjecting the side hydrocarbon stream to at least one crystallization step to obtain a purified styrene composition.
A structured packing bed for a column is provided. The structured packing bed comprises at least two layers stacked vertically above each other, and at least two of the layers each comprise at least one structured cross-channel packing element having a specific surface area of 60 to 500 m2/m3 and a height of 50 to less than 150 mm. At least 50% of the structured cross-channel packing elements are a block comprising a plurality of sheets with periodic deformations. The sheets are arranged in a longitudinal direction parallel and in touching contact with each other such that an open space is provided between them. Adjacent sheets are oriented such that their deformations intersect in crisscross fashion with each other, and a structured cross-channel packing element of a layer is rotated with regard to a structured cross-channel packing element of an adjacent layer by 70 to 110°.
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
F28F 3/02 - Eléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p.ex. avec des ailettes, avec des évidements, avec des ondulations
A pumping arrangement includes first and second multistage pumps. Each pump includes a housing with a pump unit, the housing includes a pump inlet and a pump outlet, the pump unit includes a plurality of impellers to convey fluid from the pump inlet to the pump outlet, and a pump shaft extending from a drive end to a non-drive end, each impeller mounted to the pump shaft. The second multistage pump includes a first mechanical seal having a process side facing the pump unit. The pump outlet of the first multistage pump connected to the pump inlet of the second multistage pump, so that the first multistage pump and the second multistage pump are arranged in series. The process side of the first mechanical seal of the second multiphase pump is in fluid communication with the pump inlet of the first multistage pump.
A process for preparing a purified benzene composition from a crude hydrocarbon stream containing at least 10% by volume of benzene is provided. The process comprises subjecting the crude hydrocarbon stream and a further recycled benzene containing stream to a solvent-based extraction so as to produce a benzene enriched aromatic stream and a benzene depleted non-aromatic stream, subjecting the benzene enriched aromatic stream to a hydrodesulfurization so as to obtain a desulfurized aromatic stream, subjecting the desulfurized aromatic stream to a distillation producing a purified benzene stream and a further benzene containing stream having a benzene concentration of between less than 100% by weight and the azeotropic benzene concentration, and at least partially recycling the further benzene containing stream.
C07C 7/00 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs
C07C 7/10 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par extraction, c. à d. purification ou séparation d'hydrocarbures liquides à l'aide de liquides
C07C 7/17 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par traitement provoquant une modification chimique d'au moins un composé avec les oxydes du soufre ou avec des acides
C07C 7/08 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par distillation à l'aide de composés auxiliaires extractive
A rotary pump for conveying a fluid, includes a pump housing, a pump shaft, a hydraulic unit, a mechanical seal, and a stator. The hydraulic unit conveys and pressurizes the fluid, includes an impeller fixedly mounted on the pump shaft, and during operation generates an axial thrust to act on the pump shaft. The mechanical seal seals the pump shaft and includes a rotor connected to the pump shaft in a torque proof manner. The stator is stationary with respect to the pump housing. The mechanical seal is arranged between the hydraulic unit and an end of the pump shaft, and is a balancing device configured to generate an axial force on the pump shaft during operation, with the axial force configured to counteract the axial thrust.
A method for manufacturing a propeller for a propeller pump includes providing a base propeller including a hub extending from an axial end in the axial direction, and a plurality of blades fixedly connected to the hub, each blade including a pressure side, a suction side, a leading edge, an initial trailing edge, and a blade tip extending from the leading edge to the initial trailing edge at the end of the blade facing away from the hub, trimming each of the blades of the base propeller the axial direction, and forming a modified trailing edge bye removing a part of the initial trailing edge along the entire pressure side from the hub to the blade tip.
F04D 13/08 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée
17.
APPARATUS FOR SUPPLYING OR DISSIPATING HEAT, FOR CARRYING OUT REACTIONS AND FOR MIXING AND DISPERSING FLOWING MEDIA
An apparatus for supplying and dissipating heat, for carrying out reactions and for mixing and dispersing flowing media in a housing with an internal diameter for a medium and comprising internal fittings made up of a bundle of tubes with an external diameter or made up of other elongate elements oriented parallel to the longitudinal axis of the housing is provided. The apparatus includes crosspieces or crosspiece layers installed crosswise between the elongate elements. The crosspieces are inclined in relation to the longitudinal axis of the housing and are not in contact. After axially successive crosspieces, or a length, the crosspieces are installed between the tubes and turned by preferably 90°. A heat-transfer medium can flow in a co-current or counter-current mode. This results in a mixer/heat exchanger or reactor with an extremely large heat-transfer capacity and almost plug flow.
B01F 25/431 - Tubes de mélange droits avec des chicanes ou des obstructions qui ne provoquent pas de chute de pression importante; Chicanes à cet effet
B01F 25/421 - Mélangeurs statiques dans lesquels le mélange est affecté par le déplacement conjoint des composants dans des directions différentes, p.ex. dans des tubes munis de chicanes ou d'obstructions en déplaçant les composants sur une trajectoire convolutée ou labyrinthique
B01F 35/93 - Systèmes de chauffage ou de refroidissement disposés à l'intérieur du récipient
F28D 7/16 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant espacées parallèlement
F28F 1/38 - Eléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p.ex. avec des ailettes, avec des saillies, avec des évidements ces moyens étant uniquement à l'extérieur de l'élément tubulaire et étant alternés en quinconce pour former des passages tortueux pour les fluides
F28F 9/013 - Supports auxiliaires pour les éléments pour les tubes ou les assemblages de tubes
F28F 9/22 - Dispositions pour diriger les sources de potentiel calorifique dans des compartiments successifs, p.ex. aménagement des plaques de guidage
F28F 9/24 - Dispositions pour favoriser un écoulement turbulent des sources de potentiel calorifique, p.ex. par des plaques
18.
HEAT INTEGRATION VIA HEAT PUMP ON A BOTTOM DIVIDING WALL COLUMN
A dividing wall column system is provided. The dividing wall column system comprises a dividing wall column, a first reboiler, a second reboiler, and a heat pump. The dividing wall column includes a dividing wall positioned in a bottom section of the dividing wall column to divide the bottom section of the dividing wall column into a first side and a second side. The first reboiler is outside of the dividing wall column and in fluid communication with the first side of the bottom section of the dividing wall column. The second reboiler is outside of the dividing wall column and in fluid communication with the second side of the bottom section of the dividing wall column. The heat pump is in fluid communication with the dividing wall column and the second reboiler and configured to compress a first portion of an overhead product from the dividing wall column.
An energy storage system includes a vessel for storing water, an energy conversion device, and a connection line connecting the vessel with the energy conversion device. The energy conversion device includes first and second housings, a pump turbine in the first housing, and a motor generator in the second housing. The pump turbine includes a first shaft and an impeller mounted on the first shaft. The motor generator includes a second shaft and a rotor at the second shaft for rotating relative to a stator. The second shaft is coupled to the first shaft for transmitting torque between the first and second shafts. The connecting line connects a low pressure opening with an opening for receiving water or discharging water. The second housing is filled with a gas for a barrier pressure during operation of the energy conversion device, such that the rotor rotates within the gas.
F15B 13/06 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec plusieurs servomoteurs
A method for preparing a purified styrene composition with a styrene yield of at least 80%. The method comprises providing a crude composition containing styrene, and subjecting the crude composition to at least one crystallization step. The at least one crystallization step comprises at least one static crystallization stage and at least one dynamic crystallization stage.
C07C 7/14 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par cristallisation; Purification ou séparation des cristaux
C07C 5/03 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant le même nombre d'atomes de carbone par hydrogénation de liaisons doubles carbone-carbone non aromatiques
A method for preparing a purified styrene composition is provided. The method includes providing a crude composition and subjecting the crude composition to at least one crystallization step. The crude composition contains 70% by weight or more styrene based on the total weight of the crude composition. The at least one crystallization step comprises at least one of a static crystallization stage and a dynamic crystallization stage. The crude composition contains at least one impurity selected from the group consisting of: color inducing species, oxygenates, sulfur species, alpha-methylstyrene, and mixtures thereof.
C07C 5/03 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant le même nombre d'atomes de carbone par hydrogénation de liaisons doubles carbone-carbone non aromatiques
C07C 7/00 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs
C07C 7/08 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par distillation à l'aide de composés auxiliaires extractive
22.
Gas to olefins processes with coproduction of hydrogen
The present disclosure relates in its first aspect to a process of converting a stream comprising methane into chemicals, said process being remarkable in that it comprises the steps of providing a first stream (1, 5, 11) comprising methane, providing a second stream (79) which is a bromine-rich stream, putting into contact said first stream (15) with said second stream (79) to obtain a third stream (21) comprising at least unreacted methane, methyl bromide, dibromomethane, and hydrogen bromide and removing said dibromomethane from said third stream (21), to produce a dibromomethane stream (103) and a fourth stream (27) comprising unreacted methane, methyl bromide and hydrogen bromide; wherein the fourth stream (27) is converted into chemicals. In its second aspect, the present disclosure concerns an installation for carrying out the process of the first aspect.
The disclosure relates in its first aspect to a process of conversion of a gaseous stream comprising methane into hydrogen (51) and carbon (25), the process is remarkable in that it comprises a step (a) of providing a first gaseous stream (3, 7); a step (b) of bromination and synthesis in which the first gaseous stream (3, 7) is put in contact with a second stream (53) comprising bromine resulting in the formation of a third stream (15) comprising methyl bromides and hydrogen bromide, and of a fourth stream (25) comprising carbon including graphite and/or carbon black; a step (c) of separation performed on the third stream (15) to recover a hydrogen bromide-rich stream (41) which is then oxidized in a step (d) to produce a stream (51) comprising hydrogen. The second aspect relates to the installation for performing the process of the first aspect and the third aspect concerns the use of bromine in such process.
A multistage centrifugal pump for conveying a fluid includes a pump housing with an inlet to receive the fluid and an outlet to discharge the fluid, a first stage impeller and a last stage impeller to convey the fluid from the inlet to the outlet, a shaft to rotate the first stage impeller and the last stage impeller about an axial direction, a suction chamber arranged upstream of the first stage impeller and in fluid communication with the inlet, a recirculation path for the fluid including a return opening and extending from the return opening to the suction chamber, the return opening located at or in the flow path downstream of the first stage impeller and upstream of the last stage impeller, and a flow control rod disposed in the recirculation path, the flow control rod to adjust a recirculation flow through the recirculation path into the suction chamber.
The present disclosure concerns a process for converting alkyl halides to ethylene and propylene, said process comprising the steps of (a) providing a feedstream comprising alkyl halides; (b) providing a first and second catalyst composition, said second catalyst composition comprising a cracking catalyst; (c) contacting said feedstream with said first catalyst composition in a first reaction zone under first reaction conditions to provide a first product stream, and (d) subjecting at least a part of said first product stream to an Olefin Catalytic Cracking with said second catalyst composition in a second reaction zone under second reaction conditions to provide a second product steam. The process is remarkable in that it further comprises a step of steaming said first catalyst composition before the step (c) and in that said first catalyst composition comprises zeolites and a binder, wherein said zeolites comprise at least one 10-membered ring channel.
C07C 1/26 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'halogènes en tant qu'hétéro-atomes
C07C 1/30 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'halogènes en tant qu'hétéro-atomes par départ des éléments d'un acide halogéné à partir d'une seule molécule
26.
PROCESS FOR CONTROLLING OF THE TREATMENT OF WASTE FLUID GENERATED DURING A PETROCHEMICAL PROCESS USING AN INCINERATOR
A process for treating waste fluid generated during a petrochemical process. The process comprises: subjecting at least one first water-based wastewater stream to at least one freeze concentration stage so as to produce a third clean water stream and a fourth concentrated water-based wastewater stream, subjecting at least one second organic fluid-based waste fluid stream to at least one separation stage so as to produce a fifth purified product stream and a sixth concentrated organic fluid-based waste fluid stream, forwarding the fourth concentrated water-based wastewater stream and the sixth concentrated organic fluid-based waste fluid stream to an incinerator, and incinerating the streams in the incinerator. The process is controlled such that incineration of the sixth concentrated organic fluid-based waste fluid stream generates at least 70% of an energy necessary to incinerate the fourth concentrated water-based wastewater stream.
C02F 1/22 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par congélation
C02F 1/04 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par chauffage par distillation ou évaporation
C02F 1/26 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par extraction
C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
C02F 11/06 - Traitement des boues d'égout; Dispositifs à cet effet par oxydation
27.
PLACE AND COST EFFICIENT PLANT AND PROCESS FOR SEPARATING ONE OR MORE PURIFIED HYDROCARBON STREAMS FROM CRUDE HYDROCARBON STREAMS, SUCH AS FOR NAPHTHA STABILIZATION AND LPG RECOVERY
A plant for separating at least one purified hydrocarbon stream from at least one crude hydrocarbon feed stream. The plant comprises a vessel with a single foundation. The vessel comprises an absorber section and a first divided-wall column. The first divided-wall column comprises a dividing wall, a stripper section, and a stabilization section.
The present disclosure concerns a process for converting methyl halides to ethylene and propylene, said process comprising the steps of (a) providing a feedstream comprising methyl halides; (b) providing a first and second catalyst composition, said second catalyst composition comprising a cracking catalyst; (c) contacting said feedstream with said first catalyst composition in a first reaction zone under first reaction conditions to provide a first product stream; and (d) subjecting at least a part of said first product stream to an Olefin Catalytic Cracking with said second catalyst composition in a second reaction zone under second reaction conditions to provide a second product steam. The process is remarkable in that said step (c) is performed under 400° C., and in that said first catalyst composition comprises molecular sieves with a Si/Al atomic between 2 and 18 and with a plurality of pores with a shape of an 8-membered ring or less.
C07C 1/30 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'halogènes en tant qu'hétéro-atomes par départ des éléments d'un acide halogéné à partir d'une seule molécule
B01J 23/02 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe des métaux alcalins ou alcalino-terreux ou du béryllium
A pump arrangement for pumping barrier liquid in a sealed space of a mechanical shaft seal includes a housing assemblable in connection with a rotatable shaft of a device to be sealed by the mechanical shaft seal. The housing includes a pumping element, which is configured to be in force transmission connection with the rotatable shaft to provide power to operate the pumping element when in use.
F04D 29/12 - Joints d'étanchéité pour arbre utilisant des bagues
F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
30.
Alkyl halides conversion into acyclic C3-C6 olefins
The present disclosure relates to a process for converting one or more alkyl halides to acyclic C3-C6 olefins, said process comprising the steps of (a) providing a feedstream comprising one or more alkyl halides; (b) providing a catalyst composition; and (c) contacting said feedstream with said catalyst composition under reaction conditions. The process is remarkable in that said process further comprises a step of steaming said catalyst composition before the step (c) and in that said catalyst composition comprises one or more zeolites and a binder, wherein said one or more zeolites comprise at least one 10-membered ring channel. The present disclosure further relates to the use of a catalyst composition in said process, said catalyst composition comprising one or more zeolites and a binder, wherein said catalyst composition is steamed before use.
C07C 1/26 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'halogènes en tant qu'hétéro-atomes
B01J 35/00 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général
B01J 29/40 - Zéolites aluminosilicates cristallines; Leurs composés isomorphes du type pentasil, p.ex. types ZSM-5, ZSM-8 ou ZSM-11
The present disclosure relates to a process for converting one or more methyl halides to acyclic C3-C6 olefins, said process comprising the steps of (a) providing a feedstream comprising one or more methyl halides; (b) providing a catalyst composition; and (c) contacting said feedstream with said catalyst composition under reaction conditions. The process is remarkable in that said reaction conditions include a reaction temperature below 400° C., and in that said catalyst composition comprises one or more molecular sieves with a Si/Al atomic ratio ranging from 2 to 18 and wherein said one or more molecular sieves comprise a plurality of pores, wherein said pores have a shape of an 8-membered ring or less.
C07C 1/30 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'halogènes en tant qu'hétéro-atomes par départ des éléments d'un acide halogéné à partir d'une seule molécule
B01J 29/70 - Zéolites aluminosilicates cristallines; Leurs composés isomorphes de types caractérisés par leur structure spécifique non prévus dans les groupes
B01J 35/10 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides caractérisés par leurs propriétés de surface ou leur porosité
B01J 37/10 - Traitement thermique en présence d'eau, p.ex. de vapeur d'eau
B01J 37/00 - Procédés de préparation des catalyseurs, en général; Procédés d'activation des catalyseurs, en général
B01J 37/02 - Imprégnation, revêtement ou précipitation
B01J 35/00 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général
A component of a rotary machine extends to an axial direction and a radial direction vertical thereto, and has an inner channel, extending from a first end of a core of a center of the component and to a second end at a radial limiting surface of the component and which is at least partially closed. A blank includes the core of the component and is limited by an outer surface in the radial direction. The blank is subtractively processed in a first subtractive process step, such that an outer contour is elaborated in the area of the outer surface, which extends in the radial direction, and a part of the channel is manufactured, which radially extends in the blank to the first end. The channel is formed by a build-up process on the blank.
B23P 15/00 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe
B23P 15/04 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'aubes de turbine ou d'organes équivalents, en plusieurs pièces
B22F 5/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser
B23K 9/04 - Soudage pour d'autres buts que l'assemblage de pièces, p.ex. soudage de rechargement
F01D 5/04 - Organes de support des aubes, p.ex. rotors pour "machines" ou machines à flux radial
F04D 29/22 - Rotors spécialement pour les pompes centrifuges
F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
B23K 9/173 - Soudage ou découpage à l'arc utilisant des gaz de protection et une électrode consommable
B22F 10/80 - Acquisition ou traitement des données
B23P 6/00 - Remise en état ou réparation des objets
F01D 5/00 - Aubes; Organes de support des aubes; Dispositifs de chauffage, de protection contre l'échauffement, de refroidissement, ou dispositifs contre les vibrations, portés par les aubes ou les organes de support
A debris trap for capturing debris flowing in a stream of liquid, the debris trap includes a housing, a fluid inlet channel in connection with a space in the housing, a fluid outlet channel in connection with the space, the fluid outlet channel comprising a fluid outlet port, a float member, a guide element configured to guide movement of the float member when a liquid level in the space changes when in use, a stopper in connection with the fluid outlet port configured to stop the movement of the float member when the liquid level in the space raises, the fluid outlet port which, when the float member is against the stopper, remains partially open and the float member, when brought against the stopper, form a fluid communication path with a reduced area, which restricts the size of the debris capable of flowing through the outlet port.
A process for purifying a crude composition comprising rectifying the crude composition in a rectification plant. The rectification plant comprises a rectification column including: a first overhead condenser for condensing a head fraction, and a reboiler for evaporating a bottom fraction. A difference between a temperature of the head fraction and a temperature of the bottom fraction is less than or equal to 20° C. A heat pump is provided between the first overhead condenser and the reboiler. The heat pump is an indirect heat pump that is operated with water or methanol as a refrigerant, and the indirect heat pump includes an expansion valve and a compressor. The heat pump comprises a second condenser located upstream of the compressor.
A sensing arrangement for sensing a physical parameter inside a closed container transmits data through the container wall to the outside of the container. The sensing arrangement includes an inside circuit inside the container and further includes an outside circuit outside the container. The inside circuit includes a transmitter circuit configured to create a controller output signal that characterizes information to be transmitted, such as sensor information. A first inside piezoelectric transducer of the transmitter circuit creates an acoustic data signal based on the controller output signal and transmits the acoustic data signal through the wall of the container to a first outside piezoelectric transducer of the controller outside circuit. The controller output signal and/or the data signal do not contain sensor information in the amplitude or phase or frequency of the controller output signal and/or the data signal. The controller output signal is preferably pulse width modulated.
A method of operating a sealing monitoring system for a seal of a rotatable shaft including a flushing liquid system, the seal disposed between the rotatable shaft and a stationary housing. The sealing monitoring system includes a liquid detector to detect a presence of a flushing liquid in the flushing liquid system. The method includes detecting the flushing liquid presence status in the flushing liquid system with the liquid detector, and when the flushing liquid presence status is affirmative, transmitting the flushing liquid presence status for processing using a wireless data communication system with a first data transmission interval between the transmissions, and when the flushing liquid presence status is negative, transmitting the flushing liquid presence status for processing using the wireless data communication system with a second data transmission interval being shorter than the first transmission interval between the transmissions.
G01M 3/04 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite
F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
A tube-bundle heat exchanger includes built-in elements formed by deflection surfaces, windows and directing sections. The product flows in the outer chamber of a tube-bundle heat exchanger with an inlet and an outlet for the product and an inlet and an outlet for the heat carrier medium in the tubes. The deflection panels including the tube-bundle heat exchanger are modified such that they leave windows open and a directing section is attached on the inlet side and the outlet side of the deflection surface. These directing sections run parallel to the tube axes and cross one another. The flow is divided by the direction sections on the inlet side and directed to the windows in opposing directions, where it then exits on respective opposing sides of the outlet sections and is deflected.
F28D 7/16 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant espacées parallèlement
38.
Hexane as a by-product of isomerization unit using a dividing wall column
A dividing wall column system for producing hexane includes a dividing wall column including a dividing wall that divides the dividing wall column at least partially into a first side and a second side, with one side of the first and second sides configured to operate as a deisohexanizer column and the other side of the first and second side configured to operate as a hexane column to produce hexane.
C07C 7/04 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par distillation
C07C 7/163 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par traitement provoquant une modification chimique d'au moins un composé par hydrogénation
C07C 7/00 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs
A method for manufacturing a component of a rotary machine, the component extends in an axial direction and a radial direction vertical thereto, and has an inner channel, extending from a first end in a center of the component to a second end at a radial limiting surface of the component and which is partially closed. A blank includes the center of the component and is limited by an outer surface in the radial direction. The maximum dimension of the outer surface in the radial direction is smaller than the dimension of the limiting surface in the radial direction. A first subtractive process step is performed such that a part of the channel is manufactured by a machining process, with the part extending from the first end of the channel to the outer surface of the blank. Afterwards the channel is finished by a build-up process on the blank.
B23K 9/04 - Soudage pour d'autres buts que l'assemblage de pièces, p.ex. soudage de rechargement
B23K 9/167 - Soudage ou découpage à l'arc utilisant des gaz de protection et une électrode non consommable
F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
B33Y 80/00 - Produits obtenus par fabrication additive
B23P 6/00 - Remise en état ou réparation des objets
B23P 15/04 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'aubes de turbine ou d'organes équivalents, en plusieurs pièces
F01D 5/04 - Organes de support des aubes, p.ex. rotors pour "machines" ou machines à flux radial
F04D 29/22 - Rotors spécialement pour les pompes centrifuges
B22F 7/08 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de pièces ou objets composés de parties différentes, p.ex. pour former des outils à embouts rapportés avec une ou plusieurs parties non faites à partir de poudre
A rotary pump includes a balance drum connected to a pump shaft between a hydraulic unit and the pump shaft, an axial relief passage between a balance drum and a stationary part stationary relative to a pump housing, and a balancing device arranged between the balance drum and the hydraulic unit, the balancing device including a ring-shaped rotary part connected to the pump shaft, and a ring-shaped non-rotary part movable only in the axial direction, the rotary part having an axial face facing the hydraulic unit, the rotary part and the non-rotary part overlap in a radial direction, which is perpendicular to the axial direction, and the non-rotary part movable in the axial direction such that a radial relief passage is open during operation of the pump, with the radial relief passage extending in the radial direction between the rotary part and the non-rotary part.
A process fluid lubricated pump includes a housing with an inlet to receive the fluid, and an outlet to discharge the fluid, a shaft extending from a drive end to a non-drive end and rotatable about an axial direction, the drive end of the shaft arranged outside the housing, a hydraulic unit including impellers mounted on the shaft, a collection chamber to collect leaking process fluid, the collection chamber comprising an exit, through which the shaft passes, and an exit to discharge the process fluid, and a throttle device arranged between the hydraulic unit and the collection chamber, the throttle device comprising a stationary throttle part having first and second axial faces delimiting the stationary throttle part, the first axial face facing the collection chamber, and the throttle device including a throttle gap surrounding the shaft and extending from the first axial face to the second axial face.
F04D 13/08 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée
F04D 1/08 - Pompes multiétagées les étages étant concentriques
F16C 17/02 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement
F16C 17/08 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges axiales uniquement pour porter la partie extrême d'un arbre ou d'un autre organe, p.ex. crapaudines
F16C 17/14 - Paliers à contact lisse pour mouvement de rotation exclusivement caractérisés par des particularités sans rapport avec la direction de la charge spécialement adaptés au fonctionnement dans l'eau
42.
FILTER ELEMENT FOR FILTER DISC COMPRISING ELEVATED RESTRICTION EDGES
In a filter element for use in a filter disc, a plurality of filter elements are arranged on a rotor shaft in a manner allowing liquid communication between the inside of the filter elements and the inside of the rotor shaft. The filter element has at least one passage in an edge structure for liquid communication between the inside of adjacent filter elements when the filter elements are assembled forming a filter disc. The passage has an elevated retention edge extending along at least one edge of the passage. Transportation of particles between filter elements in a disc filter is thereby minimized.
A multistage centrifugal pump for conveying a fluid includes a pump housing, two first stage impellers, a last stage impeller and a shaft. The two first stage impellers and the last stage impeller convey the fluid from a housing inlet to a housing outlet. The shaft rotates each impeller about an axial direction, each impeller comprising a suction side to receive the fluid and a discharge side to discharge the fluid. The last stage impeller is a double suction impeller, having a first suction side and a second suction side, and the last stage impeller is arranged between the two first stage impellers with respect to the axial direction. Each impeller of the two first stage impellers is arranged with the suction side of a respective first stage impeller facing one of the first and second suction sides of the last stage impeller.
A multiphase pump for conveying a multiphase process fluid includes a pump housing, a stationary diffuser, a rotor and swirl brake. The rotor is arranged in the pump housing and is rotatable about an axial direction, the rotor including a pump shaft and an impeller fixedly mounted on the pump shaft. The stationary diffuser is arranged adjacent to and downstream of the impeller. The impeller includes a blade with the blade having a radially outer tip, and a ring surrounding the impeller and arranged at the radially outer tip of the blade. A passage is between the ring and a stationary part configured to be stationary with respect to the pump housing, the passage extending in the axial direction from an entrance to a discharge. The swirl brake is disposed at the passage, and configured and arranged to brake swirling of the process fluid passing through the passage.
A three-dimensional printing system for preparing a three-dimensional object made at least partially of an expanded polymer includes a printing device configured to prepare an expandable polymer melt and deposit a strand of expandable, expanding or expanded polymer onto a surface and a three-dimensional movement device for to enable depositing of the strand of expandable, expanding or expanded polymer at a predetermined time at a precise position within the three-dimensional matrix. The printing device includes a feed section at an upstream end of the printing device, a heating section, a pressurizing section, a blowing agent supply line, a mixing section, a cooling section and a terminal printing head section at a downstream end of the printing device including a die configured to deposit the strand of the expandable, expanding or expanded polymer onto the surface.
B29C 64/295 - Fabrication additive, c. à d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p.ex. par impression en 3D, stéréolithographie ou frittage laser sélectif - Détails ou accessoires à cet effet Éléments de chauffage
A flotation apparatus for separating oil from a dispersion containing water as a continuous phase and oil as a dispersed phase. The apparatus comprises a vessel having one or more longitudinal cell sections in its longitudinal direction, at least one of the one or more longitudinal cell sections comprising: an underflow weir, an overflow weir displaced downstream from the underflow weir, a gas injection structure located below the underflow weir or in the channel formed between the underflow weir and the overflow weir, a removal structure for removing a fraction formed during the operation of the flotation apparatus on the liquid level from the liquid level, and a hydraulic structure for hydraulically pushing the fraction formed during the operation of the flotation apparatus on the liquid level into the removal structure using a liquid stream, a liquid/gas stream and/or a gas stream that is ejected by the hydraulic structure.
A process fluid lubricated pump includes a pump having a pump shaft extending from a drive end to a non-drive end, first and last stage impellers, a drive unit exerting torque on the drive end to rotate the pump shaft, a balance drum connected to the pump shaft between the pump and the drive end, the balance drum defining a drum front side facing the pump and a drum back side, a relief passage between the balance drum and a first stationary part configured to be stationary with respect to a housing, the relief passage extending from the drum front side to the drum back side, the pump shaft radially supported in a non-contacting manner during operation of the pump, and a hydrodynamic radial pump bearing supporting the pump shaft, the radial pump bearing arranged at the non-drive end or at the drive end of the pump shaft.
F04D 13/08 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée
A three-dimensional printing system for preparing a three-dimensional object made at least partially of an expanded polymer includes an autoclave, a printing device and a three-dimensional movement device. The printing device prepares an expandable polymer melt and deposits a strand of the expandable, expanding or expanded polymer onto a surface. The three-dimensional movement device adjusts the position of the printing device in a predefined three-dimensional matrix so as to enable depositing of the strand of expandable, expanding or expanded polymer at a predetermined time at a precise position within the three-dimensional matrix. The printing device includes a feed section, a cooling section, a backflow prevention section, a heating section and a terminal printing head section including a die for depositing the expandable, expanding or expanded polymer strand onto the surface.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p.ex. modélisation par dépôt de fil en fusion [FDM]
B29C 64/295 - Fabrication additive, c. à d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p.ex. par impression en 3D, stéréolithographie ou frittage laser sélectif - Détails ou accessoires à cet effet Éléments de chauffage
A mechanical sealing arrangement includes a rotary part, a non-rotary part and a signal processing arrangement. The rotary part includes at least a rotary slide ring and a rotary slide ring carrier, the non-rotary part including at least a non-rotary slide ring and a non-rotary slide ring carrier, and the signal processing arrangement includes at least one sensor for monitoring the operation of the mechanical sealing arrangement. A sensor ring is disposed on the non-rotary slide ring carrier, the sensor ring includes the at least one sensor and a device for transmitting measurement data from the at least one sensor for further processing.
F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
54.
3D printing system for preparing a three-dimensional object with a surface melting section
A three-dimensional (3D) printing system for preparing an object made at least partially of an expanded polymer including: a printing device for transporting and depositing a strand of expanded polymer including a blowing agent onto a surface and a 3D movement device for adjusting the position of the printing device in a predefined matrix allowing deposit of the strand of expanded polymer at a predetermined time and precise position within the matrix, the printing device includes: a feed section, a transporting section, a surface melting section, and a terminal printing head section for depositing the expanded polymer strand onto the surface, and all of sections have the same inner diameter, and the surface melting section including a solid-state welding element, a laser beam, a generator of hot gas or liquid and/or a generator of heat.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p.ex. modélisation par dépôt de fil en fusion [FDM]
An agitator assembly includes an agitator body, a shaft and a blocking part. The shaft is assembled to the agitator body and extends through a lead-through in the agitator body into the vessel, when assembled for use, and includes a sealing to seal the rotatable shaft. The blocking part arranged at the agitator body and including a shaft opening through which the shaft is arranged to extend, a mating surface to mate with the shaft which, when brought together by axial movement of the blocking part, provides a seal between the blocking part and the shaft, and the mating surface arranged at an axial distance from the sealing in the lead-through, and when brought together by the axial movement of the blocking part, provides a seal between the blocking part and the agitator body, and that the blocking part provides a closed space around the lead-through in the agitator body.
The present disclosure relates to a valve tray for use in a chemical process column. The valve tray includes a plurality of apertures formed therein. A plurality of valves are maintained in a spaced relationship relative to individual apertures of the plurality of apertures. An area of the individual apertures is less than an area of individual valves of the plurality of valves.
A shut-off device includes a housing, a central passage extending in an axial direction to surround the shaft, a ring-shaped first disk, a ring-shaped second disk arranged in the housing and parallel with and spaced apart from the ring-shaped first disk in the axial direction, and an expandable annular seal having a first side wall, a second side wall and an elastic bottom, the first side wall and the second side wall each extending in a radial direction, and the bottom connecting a radially inner end of the first side wall with a radially inner end of the second side wall, and the housing includes an inlet for a fluid to expand the seal, the first side wall of the seal arranged and clamped between the housing and the first disk and the second side wall of the seal arranged and clamped between the housing and the second disk.
A cleaning system for cleaning a lamella plate settler includes at least one mechanical cleaning device; a suspension device adapted to suspend the mechanical cleaning device; wherein the suspension device includes a displacement device for lowering and raising the at least one mechanical cleaning device for mechanical cleaning of a lamella plate positioned below the cleaning system. By providing a frame supporting the at least one cleaning device; wheels attached to the frame and adapted to move on rails, the wheels including driving wheels and non-driving wheel, and a sensor, preferably an inductive sensor, adapted to sense the rotational position of the driving wheels, the lamella plate settler can be automatically be cleaned without emptying the basin of water, thus allowing cleaning during operation. A lamella plate settler and a method of cleaning a lamella plate are also provided.
A bearing housing for a flow machine includes a bearing chamber configured to receive a bearing, and a lubricant chamber arranged at the bearing chamber and configured to receive a lubricant. The bearing chamber is in fluid communication with the lubricant chamber via an opening such that the lubricant is capable of flowing between the bearing chamber and the lubricant chamber. The bearing housing includes a wall portion with a cooling fin to dissipate heat of the lubricant to an environment. The cooling fin includes a conduit for the lubricant through which conduit the lubricant chamber and the bearing chamber are in fluid communication such that the lubricant is capable of being conducted from the lubricant chamber into the bearing chamber through the conduit to dissipate the heat to the environment.
A shaft bearing device for a pump includes an antifriction bearing, which can be connected to an axially displaceable pump shaft. A spring is arranged at the antifriction bearing in such a way, that a spring force can be transmitted to an outer ring of the antifriction bearing by the spring in a mounting condition of the shaft bearing device. A lifting element attached to the pump shaft and a corresponding counter element are separated from each other by the spring force in a starting state and/or in a shutdown state of the pump.
A process to prepare a (iv) cyclic polyester oligomer composition includes a cyclic polyester oligomer having furanic units and two to five repeat units. The process includes (a) reacting a monomer composition including: (i) a bifunctional furan-derivative and (ii) a diol in an linear oligomerization step to produce a (iii) linear oligomer composition including a linear oligomer species, (b) reacting the (iii) linear oligomer composition in a distillation-assisted cyclization (DA-C) step to form a (iv) cyclic polyester oligomer composition and a (v) diol byproduct. The (v) diol byproduct is removed by evaporation in the distillation-assisted cyclization (DA-C) step.
A mixer duct for mixing of a turbulent flow includes an inlet, an outlet in fluid communication with the inlet, and at least one static mixer element located between the inlet and the outlet. The at least one static mixer element includes at least two at least substantially coplanar plate-like segments spaced apart by a substantially longitudinal gap. Each segment is attached to a duct wall and comprises at least two free edges, with one free edge being a leading edge and the other free edge adjacent to the longitudinal gap. The at least two segments are inclined relative to a duct axis so that their leading edge is oriented up-stream in the mixer duct and substantially perpendicular to a direction of a main fluid flow.
B01F 25/431 - Tubes de mélange droits avec des chicanes ou des obstructions qui ne provoquent pas de chute de pression importante; Chicanes à cet effet
B01F 25/313 - Mélangeurs à injecteurs dans des conduits ou des tubes dans lesquels circule le composant principal dans lesquels des composants supplémentaires sont introduits au centre du conduit
B01F 25/314 - Mélangeurs à injecteurs dans des conduits ou des tubes dans lesquels circule le composant principal dans lesquels des composants supplémentaires sont introduits à la circonférence du conduit
B01F 25/421 - Mélangeurs statiques dans lesquels le mélange est affecté par le déplacement conjoint des composants dans des directions différentes, p.ex. dans des tubes munis de chicanes ou d'obstructions en déplaçant les composants sur une trajectoire convolutée ou labyrinthique
B01F 25/00 - Mélangeurs à écoulement; Mélangeurs pour matières tombantes, p.ex. particules solides
B01F 101/00 - Mélange caractérisé par la nature des matières mélangées ou par le domaine d'application
64.
Plant and method for purifying an isomeric monomer
A plant for preparing a purified isomeric methylene diphenyl diisocyanate monomer from a mixture of different isomeric monomers is disclosed herein. The plant can comprise a distillation apparatus, which comprises: a) a distillation column including a structured packing, b) a source for a mixture of different isomeric methylene diphenyl diisocyanate monomers, c) an evaporator, d) an overhead vapor condenser, e) optionally, an overhead vacuum system and f) a flow-controlled reflux system. The overhead vapor condenser comprises a shell and tube arrangement and is embodied so as to directly subcool the condensate to less than 47° C. The flow-controlled reflux system comprises a heater, which is embodied so as to reheat a partial stream of the condensate formed in the overhead vapor condenser up to 190° C.
C07C 265/14 - Dérivés d'acide isocyanique contenant au moins deux groupes isocyanate liés au même squelette carboné
B01D 3/26 - Colonnes de fractionnement dans lesquelles vapeur et liquide s'écoulent au contact l'un de l'autre, ou dans lesquelles le fluide est pulvérisé dans la vapeur, ou dans lesquelles un mélange de deux phases est admis à passer dans un seul sens
B01D 5/00 - Condensation de vapeurs; Récupération de solvants volatils par condensation
B01D 1/22 - SÉPARATION Évaporation par amenée d'une pellicule liquide au contact d'une surface chauffée
A method for operating a pump, for conveying a fluid from a low-pressure side to a high-pressure side of the pump includes determining a current rate of change of pump vibrations and comparing the current rate of change with a limit for the rate of change or determining a current vibration of the pump and comparing the current vibration with a vibration amplitude limit for the vibration, storing the limit for the rate of change or the vibration amplitude limit in a surge controller, providing a control signal when the current rate of change reaches the limit or when the current vibration reaches the vibration amplitude limit, and changing a control variable of the pump by the control signal, such that the vibration is reduced and an unstable operating state of the pump is avoided.
A reverse osmosis system includes a membrane unit, an energy recovery device, high and low pressure inlet lines, and a concentrate line. The membrane unit has a membrane, an inlet for receiving a feed fluid, a permeate outlet for discharging a permeate fluid and a concentrate outlet for discharging a concentrate fluid. The energy recovering device has a turbine portion, a turbine inlet and a turbine outlet, a pump portion, a pump inlet and a pump outlet, a motor, and a motor control unit for controlling the motor. The low pressure inlet line is connected to the pump inlet for supplying the feed fluid at a low pressure. The high pressure inlet line connects the pump outlet with the inlet for supplying the feed fluid at a high pressure. The concentrate line connects the concentrate outlet with the turbine inlet for supplying the concentrate fluid to the turbine portion.
F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
F04D 29/42 - Carters d'enveloppe; Tubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
F03B 3/02 - "MACHINES" OU MACHINES MOTRICES À LIQUIDES - Parties constitutives ou détails particuliers les concernant à écoulement radial du côté haute pression et écoulement axial du côté basse pression des rotors, p.ex. turbines Francis
C02F 103/08 - Eau de mer, p.ex. pour le dessalement
A liquid distributor for a separation device, such as for a mass transfer column for a packing column for absorption, stripping, scrubbing or distillation. The liquid distributor includes at least one distributor member having two or more outlet openings for an outflow of liquid in the form of jets, and the liquid distributor further includes at least one screen which is arranged in front of the outlet openings so that liquid jets outflowing through the outlet openings of the distributor member impinge onto the surface of the at least one screen and are deformed thereon to thin flowing liquid films. At least one of the at least one screen is made at least partially of a carbon composite material.
A multistage pump includes a pump casing, a shaft, a first impeller, a second impeller, and a pipe. The shaft is rotatably disposed within the pump casing and has a longitudinal axis. The first impeller is disposed within the casing at a first position along the shaft. The second impeller is disposed within the casing at a second position and along the shaft. The pipe is detachably attached to the pump casing, and has an inlet and an outlet, the inlet disposed at the discharge of the first impeller and the outlet disposed at an eye of the second impeller, such that discharge from the first impeller can be conveyed to the eye of the second impeller.
F15D 1/04 - Agencement de déflecteurs de guidage dans les coudes des tuyaux ou les courbes des conduits; Structure des éléments de conduit ou de coudes en relation avec l'écoulement, spécialement pour réduire les chutes de débit
A stage piece for a multistage pump includes a first ring, a second ring, and a post. The connects the first ring to the second ring and has a first radial end and a second radial end and a first side and a second side connecting the first and second ends. The first and second sides are arcuate and extend toward each other such that the first radial end is longer that the second radial end.
A multistage pump for conveying a fluid includes an outer pump housing, at least first and last stages arranged in the outer pump housing. Each stage includes a stage casing, an impeller, and a diffuser. A pump inlet supplies the fluid to the impeller of the first stage and, a pump outlet discharges the fluid. Each impeller is mounted to a pump shaft in a torque proof manner, and the impellers are arranged one after another on the pump shaft. The last stage includes a collector with a collector chamber to receive the fluid from the diffuser of the last stage. The first stage includes guide channels to receive the fluid from a diffusor and to guide the fluid to the impeller of the next stage. The collector chamber is displaced in the axial direction with respect to the diffusor of the last stage.
A multiphase pump for conveying a multiphase process fluid includes a pump housing, a rotor and a radial bearing. The rotor is arranged in the pump housing and is configured to rotate about an axial direction. The radial bearing has a support carrier and a support structure to support the rotor with respect to a radial direction. The rotor includes a pump shaft and an impeller fixedly mounted on the pump shaft to convey the process fluid from a pump inlet to a pump outlet. A squeeze film damper is provided to reduce vibrations of the rotor, the squeeze film damper arranged around the support structure of the radial bearing, and having an radially outer surface. A damping gap is arranged between the support structure of the radial bearing and the radially outer surface of the squeeze film damper. The damping gap is configured to receive a damping fluid.
F16C 17/03 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges radiales uniquement avec segments supportés obliquement, p.ex. paliers Michell
F16F 15/023 - Suppression des vibrations dans les systèmes non rotatifs, p.ex. dans des systèmes alternatifs; Suppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif utilisant des moyens fluides
F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analogues; Equilibrage
F04D 13/08 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée
H02K 5/167 - Moyens de support des paliers, p.ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des paliers à contact lisse ou des chapeaux de palier sphériques
73.
Adaptive architecture solids diverter and comminutor
A system for comminuting solid waste material including a shredding device disposed within the casing and comprising parallel first and second shredding stacks that include first and second parallel shafts rotatably mounted between an upper shredding device housing and a lower shredding device housing and a rotating screening drum disposed within the casing and mounted between an upper screening drum housing and a lower screening drum housing, the rotating screening drum configured to permit fluid to pass therethrough while capturing solids on an outer surface for delivery to shredding device, an upstream portion of the rotating screening drum disposed upstream of an upstream portion of the shredding device. The upper shredding device housing and the lower screening device housing are separate members from the upper screening drum housing and the lower screening drum housing to permit interchangeability of different sizes of these components to meet system needs.
B02C 18/00 - Désagrégation par couteaux ou autres organes coupants ou déchirants qui transforment le matériau en fragments; Hachoirs ou appareils similaires utilisant des vis ou analogue
B02C 18/14 - Désagrégation par couteaux ou autres organes coupants ou déchirants qui transforment le matériau en fragments; Hachoirs ou appareils similaires utilisant des vis ou analogue à couteaux rotatifs à l'intérieur de récipients horizontaux
B02C 18/16 - Désagrégation par couteaux ou autres organes coupants ou déchirants qui transforment le matériau en fragments; Hachoirs ou appareils similaires utilisant des vis ou analogue à couteaux rotatifs - Parties constitutives
B02C 23/10 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation au moyen d'un séparateur situé dans le passage de décharge de la zone de broyage ou de désagrégation
B02C 23/16 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation au moyen d'un séparateur délimitant la fin de la zone de broyage ou de désagrégation, p.ex. au moyen d'un tamis empêchant la sortie des matériaux hors dimension
B02C 23/36 - Addition de fluide, dans un but autre que celui de broyer ou de désagréger par l'énergie du fluide la zone de broyage ou de désagrégation étant immergée dans un liquide
B02C 23/38 - Addition de fluide, dans un but autre que celui de broyer ou de désagréger par l'énergie du fluide dans des appareils comportant plusieurs zones de broyage ou de désagrégation
74.
Screen diverter and dual comminutor with continual operation
A system for comminuting solid waste material including a casing defining a comminution chamber having two side walls and adapted for connection in a solid waste disposal channel. The system includes a first shredding device and a second shredding device disposed along a line extending perpendicular to a flow direction in the channel to form a pair of interactive shredding members. A rotating screening drum disposed within the casing upstream of the first and second shredding devices and positioned between the first and second shredding devices, the rotating screening drum configured to permit fluid to pass therethrough and to move solids toward one of the shredding devices. The rotating screening drum is configured to rotate clockwise and counter clockwise to alternately distribute solids captured thereon to one of the first and second shredding devices.
B02C 18/00 - Désagrégation par couteaux ou autres organes coupants ou déchirants qui transforment le matériau en fragments; Hachoirs ou appareils similaires utilisant des vis ou analogue
B02C 18/14 - Désagrégation par couteaux ou autres organes coupants ou déchirants qui transforment le matériau en fragments; Hachoirs ou appareils similaires utilisant des vis ou analogue à couteaux rotatifs à l'intérieur de récipients horizontaux
B02C 18/16 - Désagrégation par couteaux ou autres organes coupants ou déchirants qui transforment le matériau en fragments; Hachoirs ou appareils similaires utilisant des vis ou analogue à couteaux rotatifs - Parties constitutives
B02C 23/36 - Addition de fluide, dans un but autre que celui de broyer ou de désagréger par l'énergie du fluide la zone de broyage ou de désagrégation étant immergée dans un liquide
A pump for conveying a fluid includes a stationary housing, an impeller conveying the fluid from a low pressure region to a high pressure region, a shaft to rotate the impeller about an axial direction, and a separation device to restrict a flow of the fluid from the high pressure region to the low pressure region. The separation device includes a rotary part connected to the shaft, and a stationary part stationary with respect to the housing. The rotary and stationary parts face each other and delimit a gap between the stationary part and the rotary part. The gap is arranged between the high and low pressure regions. A recess is disposed in the stationary part or the rotary part, the recess including a bottom, and a non-metallic insert is disposed in the recess. A relief channel enables fluid communication between the bottom and the low pressure region.
A vibration detection instrument assembly includes a vibration detection instrument and a deformable base part. The vibration detection instrument has a body part, including a support surface and an attachment screw extending from the support surface. The attachment screw enables the vibration detection instrument to be assemblable to a device to be monitored. The vibration detection instrument includes a vibration sensor to detect vibration at least in a direction deviating from a longitudinal axis of the attachment screw. The deformable base part is arranged at least partly against the support surface of the body part. The vibration detection instrument assembly includes a direction indicator arranged to indicate the direction of the vibration sensor.
G01H 11/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores par détection des changements dans les propriétés électriques ou magnétiques
G01P 15/00 - Mesure de l'accélération; Mesure de la décélération; Mesure des chocs, c. à d. d'une variation brusque de l'accélération
77.
METHOD OF MANUFACTURING A COMPONENT OF A ROTARY MACHINE AND COMPONENT MANUFACTURED USING SAID METHOD
A component of a rotary machine formed from a blank, the component includes a center, a boundary surface, and at least one inner passage extending from the center up to the boundary surface and being at least partly closed. The inner passage is formed by a first subtractive machining in which a part of the passage that at least includes an opening of the passage into the boundary surface as well as a cut-out in the top surface is manufactured by machining production, and subsequently the passage is completed by a build-up production on the blank.
A multistage pump for installation on a sea ground includes a common housing, a pump unit arranged in the common housing, a drive unit arranged in the common housing, and a coupling. The common housing includes a pump inlet and a pump outlet, the pump unit including a plurality of impellers to convey a compressible fluid from the pump inlet to the pump outlet, and a pump shaft, on which each impeller is mounted, each impellepr being a radial or semi-axial impeller. The drive unit includes a drive shaft to drive the pump shaft, and an electric motor configured to rotate the drive shaft about an axial direction. The coupling couples the drive shaft to the pump shaft. The pump unit conveys the fluid in a dense phase at the pump outlet, and at least two impellers of the plurality of impellers have a different specific speed.
F04D 13/08 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée
A vane for an impeller of an agitator includes a socket having a base plane configured to mount the vane to an impeller, and a blade configured to mix a process fluid, the blade having a leading edge, a trailing edge, and a blade tip extending from the leading edge to the trailing edge at an end of the blade facing away from the socket, the blade having a pressure side and a suction side, and the pressure side having a first concave region towards the leading edge, a second concave region toward the trailing edge and a convex region between the first and second concave regions.
B01F 27/00 - Mélangeurs à agitateurs tournant dans des récipients fixes; Pétrins
B01F 27/113 - Agitateurs en forme d'hélice pour produire un écoulement axial, p.ex. en forme d'hélice de navire ou d'avion
B01F 27/71 - Mélangeurs à agitateurs tournant dans des récipients fixes; Pétrins avec des agitateurs tournant autour d'un axe horizontal ou incliné avec des hélices
B01F 27/07 - Agitateurs caractérisés par leur montage sur l’arbre
B01F 33/00 - Autres mélangeurs; Installations pour effectuer des mélanges; Combinaisons de mélangeurs
B01F 101/47 - Mélange d'ingrédients pour faire de la pâte à papier, p.ex. fibres de bois ou pâte à bois
80.
Fiber disc filter having structure for preventing damage to fabric filter
The present invention relates to a fabric disc filter having a structure for preventing damage to a filter panel. In this regard, an object of the present invention is to provide a fabric disc filter having a structure for preventing damage to filter panel, being capable of preventing the filter panel attached to the filter panel from being torn or being disconnected from the filter frame in the washing process of suctioning and removing foreign matter. To accomplish this object, the present invention provides a fabric disc filter having a structure for preventing damage to filter panel, the fabric disc filter including: a rotary drum; and a plurality of filter segments arranged on an outer circumferential surface of the rotary drum, wherein each of the filter segments includes: a segment frame that is partially open so as to enable inlet of a fluid therethrough, and being configured to discharge the inlet fluid to the rotary drum; a filter frame assembled to the segment frame so as to be positioned on the fluid inlet side of the segment frame; a filter panel provided in the filter frame so as to filter foreign matter in the fluid flowing therethrough; and a rod-shaped stopper provided in the filter panel so as to distribute a load applied to the filter panel in a washing process of the filter panel and couple the filter panel to the filter frame or the segment frame.
A pump assembly includes a vertical pump arranged in a canister. The vertical pump includes a pump column disposed between a pump head and a pump bowl in an axial direction. The pump is arranged in the pump column and is configured to pump a fluid a column inlet at the pump bowl to a column outlet at the pump head. The pump column is supported so as to be stabilized by at least two damping arms disposed on an outer surface of the pump column, and each damping arm has an support end to support a respective damping arm on an inner surface of the canister in a radial direction perpendicular to the axial direction. Each support end is movable independently from each other support end with respect to the axial direction.
Provided is a wash press that separates liquids and solids from a waste stream. The wash press includes a tank having a semi-cylindrical shape. The tank has an inlet at a top of the tank for receiving a waste stream, a screen disposed in a portion of a bottom of the tank to permit liquid to pass therethrough, and an outlet for permitting solid materials separated from the liquid to pass therethrough. A rotor extends through the tank for transporting and dewatering the waste material entering the tank. The rotor includes a plurality of helical flights interconnected by paddle members to permit agitating the waste material. The wash press also includes a removable cover that enables the rotor to be lifted vertically, and a removably attached screen to facilitate replacement/repair of the same.
B01D 29/64 - Régénération de la substance filtrante dans le filtre par des racloirs, des brosses ou des dispositifs analogues agissant sur le côté de l'élément filtrant où se trouve le gâteau
B01D 29/35 - Eléments filtrants autoportants agencés pour la filtration à courant dirigé vers l'extérieur
B30B 9/12 - Presses spécialement adaptées à des fins particulières pour exprimer les liquides des substances les contenant, p.ex. le jus des fruits, les huiles des oléagineux utilisant des vis de pression coopérant avec une paroi perméable
C02F 11/126 - Traitement des boues d'égout; Dispositifs à cet effet par déshydratation, séchage ou épaississement par déshydratation mécanique à l’aide de filtres à tambour
A rotary machine for acting on a process fluid includes an impeller, a shaft, a drive, a seal and a flush casing. The impeller acts on the process fluid and is mounted on the shaft. The drive is connected to the shaft and rotates the shaft and the impeller about an axial direction. The seal has a sealing element sealing the shaft during rotation of the shaft. The flush casing receives a flushing fluid for flushing the sealing element, and delimits an annular flush chamber extending about the sealing element. The flush casing includes a bushing surrounding the sealing element and delimits a radial leakage gap arranged between the sealing element and the bushing. The bushing delimits an axial leakage gap between the impeller and the bushing, and the width of the axial leakage gap in the axial direction is adjustable.
A method for manufacturing a component of a rotary machine, the component extends in an axial direction and a radial direction vertical thereto, and has an inner channel, extending from a first end in a center of the component to a second end at a radial limiting surface of the component and which is partially closed. A blank includes the center of the component and is limited by an outer surface in the radial direction. The maximum dimension of the outer surface in the radial direction is smaller than the dimension of the limiting surface in the radial direction, A first subtractive process step is performed such that a part of the channel is manufactured by a machining process, with the part extending from the first end of the channel to the outer surface of the blank. Afterwards the channel is finished by a build-up process on the blank.
B23P 15/04 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'aubes de turbine ou d'organes équivalents, en plusieurs pièces
B23P 6/00 - Remise en état ou réparation des objets
F01D 5/04 - Organes de support des aubes, p.ex. rotors pour "machines" ou machines à flux radial
F04D 29/22 - Rotors spécialement pour les pompes centrifuges
B22F 7/08 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de pièces ou objets composés de parties différentes, p.ex. pour former des outils à embouts rapportés avec une ou plusieurs parties non faites à partir de poudre
A method for manufacturing a component of a rotary machine, the component extending to an axial direction and a radial direction vertical thereto, and has an inner channel, extending from a first end of a core of a center of the component and to a second end at a radial limiting surface of the component and which is at least partially closed. A blank includes the core of the component and is limited by an outer surface in the radial direction. The blank is subtractively processed in a first subtractive process step, such that an outer contour is elaborated in the area of the outer surface, which extends in the radial direction, and a part of the channel is manufactured, which radially extends in the blank to the first end. The channel is finished by a build-up process on the blank.
B23P 15/00 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe
B23P 15/04 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'aubes de turbine ou d'organes équivalents, en plusieurs pièces
F01D 5/00 - Aubes; Organes de support des aubes; Dispositifs de chauffage, de protection contre l'échauffement, de refroidissement, ou dispositifs contre les vibrations, portés par les aubes ou les organes de support
B23K 9/04 - Soudage pour d'autres buts que l'assemblage de pièces, p.ex. soudage de rechargement
F01D 5/04 - Organes de support des aubes, p.ex. rotors pour "machines" ou machines à flux radial
F04D 29/22 - Rotors spécialement pour les pompes centrifuges
F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
B23K 9/173 - Soudage ou découpage à l'arc utilisant des gaz de protection et une électrode consommable
B22F 5/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser
A pad for a tilting pad thrust bearing for supporting the shaft of a rotary machine includes a top surface, a leading edge extending in a radial direction and a trailing edge. The pad further includes a fluid channel arranged at the top surface, the fluid channel ending in the top surface, and the fluid channel forming a fluid communication between the leading edge of the pad and the top surface of the pad.
F16C 17/06 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges axiales uniquement avec segments supportés obliquement, p.ex. paliers Michell
F16C 33/10 - Structures relatives à la lubrification
88.
Process fluid lubricated pump and seawater injection system
A process fluid lubricated pump includes a pump having a pump shaft extending from a drive end to a non-drive end to rotate about an axial direction, a first pump section having a first set of impellers fixedly mounted on the pump shaft to increase the pressure of the process fluid, a drive to exert a torque on the drive end of the pump shaft to drive the rotation of the pump shaft, a first balance drum fixedly connected to the pump shaft between the pump and the drive end of the pump shaft, the first balance drum defining a first front side facing the pump and a first back side, and a second balance drum fixedly connected to the pump shaft between the pump and the non-drive end of the pump shaft, the second balance drum defining a second front side facing the pump and a second back side.
F04D 13/08 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée
F04D 29/58 - Refroidissement; Chauffage; Réduction du transfert de chaleur
F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
F04B 47/06 - Pompes ou installations de pompage spécialement adaptées pour élever un fluide à partir d'une grande profondeur, p.ex. pompes de puits dont les ensembles pompe-moteur sont placés à grande profondeur
F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analogues; Equilibrage
A vane assembly includes a plurality of vane units and a connecting part. Each vane unit includes a base having a through-hole positioned between opposing longitudinal faces of the base. The connecting part includes a lacing bar that is insertable into and through the through-holes for coupling at least two adjacent vane units into the vane assembly. In the vane assembly the connecting part is arranged through the through holes of the plurality of vane units clamping the vane units on the lacing bar.
Apparatuses, systems and methods for separating highly pure unsaturated olefinic hydrocarbon stream with zero cooling water and or steam consumption, with minimum possible capital investment and uncompromised operational ease are disclosed herein from a mixture of hydrocarbon stream consisting of saturated and unsaturated hydrocarbons. Embodiments of the invention are directed to producing a hydrocarbon stream containing polymer, chemical grade ethylene, propylene, butylenes, isoprene, hexane stream which are of value in manufacturing chemicals, polymers, and rubbers. Embodiments of the process provided can be applied to concentrating ethylene, propylene, butylenes, cyclopentadiene, isoprene, 2 methyl butene-2, isopentane, hexene etc.
C07C 7/04 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par distillation
C07C 7/00 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs
C07C 5/03 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant le même nombre d'atomes de carbone par hydrogénation de liaisons doubles carbone-carbone non aromatiques
B01D 5/00 - Condensation de vapeurs; Récupération de solvants volatils par condensation
The invention is directed to a combined naphtha hydrotreating (NHT) and isomerization process scheme, which includes dividing wall columns (DWC) that replace multiple distillation columns and allow optimized heat integration within the system. The disclosed design provides reductions in both capital and energy costs compared to conventional schemes.
C07C 7/00 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs
C07C 7/11 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par absorption, c. à d. purification ou séparation d'hydrocarbures gazeux à l'aide de liquides
C07C 7/04 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par distillation
B01J 8/04 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solides; Appareillage pour de tels procédés avec des particules immobiles, p.ex. dans des lits fixes le fluide passant successivement à travers plusieurs lits
B01J 8/06 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solides; Appareillage pour de tels procédés avec des particules immobiles, p.ex. dans des lits fixes les particules solides étant disposées dans des tubes
C07C 5/27 - Réarrangement des atomes de carbone dans le squelette hydrocarboné
C10G 67/02 - Traitement des huiles d'hydrocarbures, uniquement par au moins un procédé d'hydrotraitement et au moins un procédé de raffinage en l'absence d'hydrogène uniquement par plusieurs étapes en série
C10G 7/02 - Stabilisation de l'essence par enlèvement des gaz au moyen d'un fractionnement
C10G 7/00 - Distillation des huiles d'hydrocarbures
C10G 45/58 - Raffinage des huiles d'hydrocarbures au moyen d'hydrogène ou de composés donneurs d'hydrogène pour changer la structure du squelette de certains hydrocarbures sans craquer les autres hydrocarbures présents, p.ex. pour abaisser le point d'écoulement; Hydrocraquage sélectif des paraffines normales
B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p.ex. extraction
B01D 3/06 - Distillation par évaporation brusque (flash)
B01D 3/32 - Autres caractéristiques de colonnes de fractionnement
B01D 5/00 - Condensation de vapeurs; Récupération de solvants volatils par condensation
C10G 67/14 - Traitement des huiles d'hydrocarbures, uniquement par au moins un procédé d'hydrotraitement et au moins un procédé de raffinage en l'absence d'hydrogène uniquement par plusieurs étapes en série comprenant au moins deux étapes de raffinage différentes, en l'absence d'hydrogène
A multiphase pump for conveying a multiphase process fluid from a low pressure side to a high pressure side includes an outer housing, a casing, the casing having a pump inlet and a pump outlet for the process fluid, and a pump rotor capable of rotating about an axial direction arranged within the casing, and configured to convey the process fluid from the pump inlet to the pump outlet. The casing includes a plurality of stage segments, and the plurality of stage segments include an individual stage-segment, a low pressure segment arranged at the pump inlet and a high pressure segment arranged at the pump outlet, the individual stage-segment arranged between the high pressure segment and the low pressure segment, and the plurality of stage segments being held together by a sealing support structure, the casing being arranged within the outer housing.
A multiphase pump includes a housing having a pump inlet and a pump outlet for a process fluid, an inlet annulus configured to receive the process fluid from the pump inlet, a discharge annulus configured to discharge the process fluid into the pump outlet, a pump rotor configured to rotate about an axial direction and arranged within the housing, the pump rotor being configured to convey the process fluid from the inlet annulus to the outlet annulus, and a return line configured to return the process fluid from the high pressure side to the low pressure side, the return line including an inlet configured to receive the process fluid, an outlet configured to discharge the process fluid and a control valve configured to open and close the return line, the inlet of the return line arranged directly at the discharge annulus.
A process for purifying a crude composition includes a monoterpene compound selected from the group consisting of monocyclic monoterpene alcohols, monocyclic monoterpene ketones, bicyclic epoxy monoterpenes and mixtures of two or more of the aforementioned compounds, such as preferably a monocyclic monoterpene alcohol. The process comprises performing a layer crystallization with a melt of the crude composition, and the melt of the crude composition subjected to the layer crystallization includes oxygen-containing solvent in a concentration of 20 ppm to 2% by weight. The oxygen-containing solvent is selected from the group consisting of water, C1-6-alcohols, C1-6-carboxylic acids, C1-6-ketones, C1-6-aldehydes, C1-12-ethers, C1-12-esters and mixtures of two or more of the aforementioned solvents.
C07C 29/00 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons
C07C 29/78 - Séparation; Purification; Stabilisation; Emploi d'additifs par traitement physique par condensation ou cristallisation
A mechanical seal has a rotary part and a non-rotary part, the rotary part having at least a rotary slide ring and a rotary slide ring carrier, and the non-rotary part having at least a non-rotary slide ring and a non-rotary slide ring carrier. The mechanical seal includes a circumferential groove in one of the rotary slide ring and the non-rotary slide ring and a sensor in communication with the mechanical seal.
F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
F04D 29/12 - Joints d'étanchéité pour arbre utilisant des bagues
F16J 15/16 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre
Extractive agent compounds are disclosed, with exemplary compounds having Formula (I):
8 aromatic compound or may alternatively be quantified in terms of a competitive factor, D, as described herein.
Para-xylene production processes are disclosed, with such processes being integrated with extractive distillation or other separation to effectively separate, for example to remove and recover, ethylbenzene and other components that co-boil with the isomers of xylene. This allows for xylene isomerization, downstream of the separation of para-xylene from its other isomers, to be operated under milder conditions (e.g., liquid phase, absence of added hydrogen) without the need for ethylbenzene conversion. The associated decreased yields of byproducts such as light gases and non-aromatic hydrocarbons, together with the generation of purified ethylbenzene having value for styrene monomer production, can significantly improve overall process economics.
C07C 5/27 - Réarrangement des atomes de carbone dans le squelette hydrocarboné
C07C 7/08 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par distillation à l'aide de composés auxiliaires extractive
C07C 7/14 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par cristallisation; Purification ou séparation des cristaux
C07C 7/12 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs par adsorption, c. à d. purification ou séparation d'hydrocarbures à l'aide de solides, p.ex. à l'aide d'échangeurs d'ions
C07C 7/00 - Purification, séparation ou stabilisation d'hydrocarbures; Emploi d'additifs
98.
Network of dividing-wall columns in complex processing units
A processing unit includes a naphtha hydrotreating unit comprising a first divided wall column, a naphtha splitter system, and a deisopentanizer column coupled to an output of a naphtha splitter of the naphtha splitter system, an isomerization unit coupled to an outlet of the deisopentanizer column, and a second divided wall column. The processing unit also includes an isomerization reactor coupled between the deisopentanizer column and the stabilizer column.
A passive actuator for suppressing vibration of a column pipe of a vertical pump, the actuator being mounted between the column pipe of the vertical pump and a canister surrounding the column pipe. The passive actuator includes a first operational state for adding stiffness between the canister and the column pipe and a second operational state for at least reducing the stiffness. The passive actuator includes passive actuator elements, each of which automatically changes from the second operational state to the first operational state when the temperature of the passive actuator element changes from a second to a first temperature, the first temperature being different from the second temperature, and to automatically change from the first operational state to the second operational state, when the temperature of the passive actuator element changes from the first temperature to the second temperature.
F03G 7/06 - Mécanismes produisant une puissance mécanique, non prévus ailleurs ou utilisant une source d'énergie non prévue ailleurs utilisant la dilatation ou la contraction des corps produites par le chauffage, le refroidissement, l'humidification, le séchage ou par des phénomènes similaires
F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analogues; Equilibrage
A multistage centrifugal grinder pump includes a grinder to grind a fluid, a first stage impeller, a second stage impeller, a stationary diffusor arranged between the first stage impeller and the second stage impeller to guide the fluid from the first stage impeller to the second stage impeller and a shaft to rotate the first stage impeller, the second stage impeller and the grinder. The first and second stage impellers in series and connected to the shaft in a torque-proof manner. The diffusor is a semi-open diffusor having a top wall, a radially outer annular side wall, and an open bottom side facing the first stage impeller, the top wall arranged adjacent the second stage impeller, the top wall having a central outlet opening surrounding the shaft, and the open bottom side extending beyond the first stage impeller with respect to a radial direction.
F04D 7/04 - Pompes adaptées à la manipulation de liquides particuliers, p.ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge les fluides étant visqueux ou non homogènes
F04D 29/42 - Carters d'enveloppe; Tubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
F04D 29/44 - Moyens de guidage du fluide, p.ex. diffuseurs
brevets
