This hydrocarbon synthesis apparatus is provided with: a reactor for bringing a syngas which comprises carbon monoxide gas and hydrogen gas as main components into contact with a slurry obtained by suspending a solid catalyst in a liquid hydrocarbon compound, and thus synthesizing liquid hydrocarbon compounds by a Fischer-Tropsch process; a filter which is provided in the reactor and which separates the liquid hydrocarbon compounds from the catalyst; and a pulverized catalyst particles discharging means for discharging pulverized catalyst particles to the outside of the reactor, said pulverized catalyst particles being formed by pulverization of the solid catalyst contained in the slurry.
C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
B01J 8/22 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid
B03B 5/28 - Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
B03B 5/64 - Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type of the free settling type
In the hydrocarbon-producing apparatus of the present invention, a vapor- liquid separation tank of a second vapor-liquid separation unit is provided with a filling material layer. A vapor-liquid separation tank of the first vapor-liquid separation unit is provided with a first return line. The vapor-liquid separation tank of the second vapor-liquid separation unit is provided with a second return line. A light component of light oil discharged from a bottom of the vapor-liquid separation tank is returned to a portion between a top side above a return-location from the second return line within the vapor-liquid separation tank of the second vapor-liquid separation unit, and a line directly connected with a cooler installed on the first vapor-liquid separation unit through the first return line. A heavy component of light oil discharged from a bottom of the vapor-liquid separation tank of the second vapor-liquid separation unit is returned to the filling material layer through the second return line.
This start up method for a hydrocarbon synthesis reaction apparatus is provided with: an initial slurry-filling step in which, during start up, the inside of a reaction vessel is filled with an initial preparation slurry amount which is less than a slurry amount during steady operation; and a CO-conversion-rate increasing step in which hydrocarbons to be synthesized when operation is initiated are added to the slurry to increase the height of the liquid level of the slurry, and the CO conversion rate is increased in accordance with the increase in the height of the liquid level of the slurry.
The present invention provides a lubricating oil composition having excellent NOx resistance, anti-oxidation properties, base number retainability and detergency, suitably used for an internal combustion engine. The lubricating oil composition comprises a lubricating base oil, (A) a 2,2,6,6-tetraalkylpiperidine derivative and (B) an organic molybdenum compound and/or an organic tungsten compound and preferably further comprises (C) a hindered phenol-type anti-oxidant and/or an aromatic amine-type anti-oxidant or (D) at least one type of compound selected from the group of consisting of phosphorus compounds and metal salts or amine salts. Furthermore, the present invention also provides a method for lubricating a sliding material by contacting a specific lubricating oil composition selected from the above lubricating oil compositions with the sliding material while preventing elution of the copper and lead contained in the material.
C10M 141/12 - Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being an organic compound containing atoms of elements not provided for in groups
C10M 129/10 - Hydroxy compounds having hydroxy groups bound to a carbon atom of a six-membered aromatic ring
C10M 133/12 - Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
C10M 133/40 - Six-membered ring containing nitrogen and carbon only
C10M 139/00 - Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups
5.
DIESEL FUEL OR DIESEL FUEL BASE STOCK AND PRODUCTION METHOD THEREOF
Provided is a hydrotreating step (A) containing a hydroisomerization step (A1) that obtains a hydroisomerized oil (a1) by bringing a FT synthesis oil into contact with a hydroisomerization catalyst and/or a hydrocracking step (A2) that obtains a hydrocracked oil (a2) by bringing it into contact with a hydrocracking catalyst, and a fractionation step (B) that transfers at least a portion of the hydrotreated oil (a) composed of the hydroisomerized oil (a1) and/or the hydrocracked oil (a2) to a fractionator and, at the very least, obtains a middle distillate (b1) with a 5% distillation point of 130 to 170°C and a 95% distillation point of 240 to 300°C, and a heavy oil (b2) that is heavier than the middle distillate (b1).
C10G 65/14 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural parallel stages only
C10G 45/62 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing platinum group metals or compounds thereof
Provided is a method for the startup of a bubble tower-type slurry bed reactor for producing hydrocarbons by Fischer-Tropsch synthesis. The method comprises a first step for filling in a reactor a slurry obtained by suspending a Fisher-Tropsch synthesis catalyst in an oil for preparing a slurry having a 5% distillation temperature between 120 and 270ºC, a 95% distillation temperature between 330 and 650ºC, and a sulfur content and aromatic content of 1 ppm or less in terms of mass, and a second step for initiating Fischer-Tropsch synthesis by raising the temperature of the reactor, with synthetic gas that is primarily hydrogen and carbon monoxide already being introduced to the slurry filled in the reactor. The oil for slurry preparation is an oil that contains a predetermined amount of specific components. During the first step, the slurry is filled into the reactor in an amount such that none sprays out from the reactor.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
Inventor
Iwama, Marie
Abstract
The present invention provides a method for producing a hydroprocessing catalyst including a supporting step of allowing a catalyst support having a content of a carbonaceous substance containing carbon atoms of 0.5% by mass or less in terms of carbon atoms to support an active metal component containing at least one active metal element selected from metals belonging to Group 6, Group 8, Group 9 and Group 10 in the periodic table, to obtain a catalyst precursor, and a calcining step of calcining the catalyst precursor obtained in the supporting step to obtain the hydroprocessing catalyst.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
Inventor
Niitsuma, Takuya
Abstract
A process for producing a kerosene base fuel according to the present invention comprises removing paraffins having carbon number of 7 or less from a first fraction having an initial boiling point of 95 to 140°C and a final boiling point of 240 to 280°C obtained from a hydrotreated oil of a Fischer-Tropsch synthetic oil to obtain a second fraction having a content of paraffins having carbon number of 7 or less of 0.1 to 0.7% by mass.
A method for starting up a bubble column slurry bed reactor of the present invention includes, when restarting operation of a bubble column slurry bed reactor for producing hydrocarbons by the Fischer-Tropsch synthesis reaction, feeding a hydroprocessed oil produced in the bubble column slurry bed reactor and hydroprocessed that contains 40% by mass or more of paraffin hydrocarbons having carbon number of 21 or more and that has a peroxide value of 1 ppm or less, to the bubble column slurry bed reactor.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
Inventor
Tanaka, Yuichi
Niitsuma, Takuya
Tasaka, Kazuhiko
Iwama, Marie
Abstract
The hydrocracking catalyst of the present invention is a hydrocracking catalyst comprising a catalyst support comprising a zeolite and an amorphous composite metal oxide having solid acidity, and at least one active metal supported by the catalyst support and selected from noble metals of Group 8 to Group 10 in the periodic table, wherein the hydrocracking catalyst contains a carbonaceous substance comprising a carbon atom, and the content of the carbonaceous substance in the hydrocracking catalyst is 0.05 to 1% by mass in terms of the carbon atom.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
Inventor
Hayasaka, Kazuaki
Abstract
This method for estimating the content of fine particles in a slurry is a method for estimating the content of fine particles having a particle diameter of a given value or less in a slurry that comprises hydrocarbons comprising wax and solid particles dispersed in the hydrocarbons. The method is characterized in that a correlation between the visible-light transmittances of dispersions obtained by dispersing solid particles having a particle diameter of the given value or less in the hydrocarbons comprising wax, the transmittances being measured at a temperature at which the hydrocarbons are liquid, and the contents of the solid particles having a particle diameter of the given value or less is determined, and the content of fine particles having a particle diameter of the given value or less in the slurry is estimated, on the basis of the correlation, from the visible-light transmittance of the supernatant of the slurry that was allowed to stand still at that temperature.
B01J 8/20 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium
B01J 8/22 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
Inventor
Onishi, Yasuhiro
Tasaka, Kazuhiko
Mikuriya, Tomoyuki
Abstract
The hydrocarbon synthesis reaction apparatus is provided with a synthesis gas supply line in which a synthesis gas is compressed and supplied by a first compressor, a reactor configured to accommodate a catalyst slurry, a gas-liquid separator configured to separate an unreacted synthesis gas and hydrocarbons discharged from the reactor into a gas and a liquid, a first recycle line in which the unreacted synthesis gas after separation into a gas and a liquid is compressed and recycled into the reactor by a second compressor, and a second recycle line configured to recycle a residual unreacted synthesis gas after separation into a gas and a liquid into the inlet side of the first compressor at the time of start-up operation when the synthesis gas is gradually increased in the amount to be introduced.
This method for stopping the operation of a reaction container involves a stopping step in which the supply of synthesis gas containing carbon monoxide gas and hydrogen gas into a reaction container is stopped, a slurry discharging step in which a slurry is discharged from the reaction container, a steam supplying step in which steam having a temperature equal to or higher than the decomposition temperature of metal carbonyl is supplied into the reaction container and the gas in the reaction container is discharged, and a carbon monoxide gas detecting step in which the amount of carbon monoxide in the gas discharged from the reaction container is detected. In the steam supplying step, the supply of steam is stopped when the detected amount of carbon monoxide gas continuously drops and becomes equal to or less than a predetermined reference value.
This catalyst for the Fischer-Tropsch synthesis reaction comprises: a carrier containing silica and 0.5-14% by mass of zirconium oxide with respect to the mass of the carrier; and 10-40% by mass of cobalt metal and cobalt oxides in terms of tricobalt tetraoxide with respect to the mass of the catalyst, the cobalt metal and cobalt oxides being supported by the carrier. The degree of reduction of the cobalt atoms is 75-93%, and the hydrogen gas adsorption amount per unit mass of the catalyst at 100°C is 0.40-1.0 ml/g.
The hydrotreating catalyst of the present invention is a hydrotreating catalyst including a catalyst support including an amorphous composite metal oxide having solid acidity, and at least one active metal supported by the catalyst support and selected from noble metals of Group 8 to Group 10 in the periodic table, wherein the hydrotreating catalyst contains a carbonaceous substance including a carbon atom, and the content of the carbonaceous substance in the hydrotreating catalyst is 0.05 to 1% by mass in terms of the carbon atom.
C10G 45/62 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing platinum group metals or compounds thereof
Heavy hydrocarbons contained in FT off gas of a GTL process are removed by bringing the FT off gas into contact with absorption oil, by introducing the FT off gas into a distillation tower, by cooling the FT off gas or by driving the FT off gas into an adsorbent. A burner tip for heating a reformer tube, using FT off gas as fuel, is prevented from being plugged by the deposition of heavy hydrocarbons contained in the FT off gas.
A synthesis gas production apparatus (reformer) to be used for a synthesis gas production step in a GTL (gas-to-liquid) process is prevented from being contaminated by metal components. A method of suppressing metal contamination of a synthesis gas production apparatus operating for a GTL process that includes a synthesis gas production step of producing synthesis gas by causing natural gas and gas containing steam and/or carbon dioxide to react with each other for reforming in a synthesis gas production apparatus in which, at the time of separating and collecting a carbon dioxide contained in the synthesis gas produced in the synthesis gas production step and recycling the separated and collected carbon dioxide as source gas for the reforming reaction in the synthesis gas production step, a nickel concentration in the recycled carbon dioxide is not higher than 0.05 ppmv.
C01B 3/34 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
C01B 3/50 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
C01B 3/52 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
18.
HYDROCARBON PRODUCTION APPARATUS AND HYDROCARBON PRODUCTION PROCESS
The hydrocarbon production apparatus is provided with a gas-liquid separator for cooling gaseous state hydrocarbons drawn out from a gas phase portion of a reactor for the Fischer-Tropsch synthesis reaction and liquefying a portion of the hydrocarbons. A light liquid hydrocarbon supply line for supplying light hydrocarbons is disposed between a downstream side line which is downstream from the last stage of a gas-liquid separating unit of the gas-liquid separator, and an upstream side line which is upstream from the last stage of the gas-liquid separating unit of the gas-liquid separator, wherein the downstream side line is a liquid hydrocarbon line on the downstream side through which the light hydrocarbons having cloud points lower than the temperature at an outlet of a cooler in the last stage of the gas-liquid separating unit are flowed.
The present invention provides a method for producing a hydrocarbon oil, including performing a hydrocracking by continuously feeding, to a hydrocracking reactor containing a hydrocracking catalyst, a wax to be processed including: a raw wax containing 70% by mass or more of straight-chain hydrocarbons with a boiling point of higher than 360°C; and an uncracked wax containing 70% by mass or more of straight-chain hydrocarbons with a boiling point of higher than 360°C, which uncracked wax is separated from a hydrocracking product discharged from the reactor, to thereby yield a hydrocarbon oil including hydrocarbons with a boiling point of 360°C or lower, wherein the following periods are alternately provided: a period for performing hydrocracking of the wax to be processed under a condition where a cracking rate defined by the following formula (1) is X1(%) satisfying the following formula (2); and a period for performing hydrocracking of the wax to be processed under a condition where the cracking rate is X2(%) satisfying the following formula (3), Cracking rate (%) = ((content of hydrocarbons with boiling point of higher than 360°C in 1 g of wax to be processed) - (content of hydrocarbons with boiling point of higher than 360°C in 1 g of hydrocracking product)) x 100/(content of hydrocarbons with boiling point of higher than 360°C in 1 g of wax to be processed) ...(1); 30<=X1 <=90 ... (2); and 0.1<=X2/X1<= 0.9 ... (3).
A catalyst recovery system that includes a concentrated slurry production unit that concentrates a slurry extracted from a reactor main unit and continuously produces a concentrated slurry, a first discharge unit that discharges the concentrated slurry from the concentrated slurry production unit, a solidified slurry production unit that cools the concentrated slurry discharged from the concentrated slurry production unit, thereby solidifying the liquid medium within the concentrated slurry and producing a solidified slurry, and a recovery mechanism that recovers the solidified slurry from the solidified slurry production unit.
The refrigerating machine oil of the invention includes an ester of a polyhydric alcohol and a fatty acid, wherein the molar ratio of C4-C6 fatty acid and C7-C9 branched fatty acid in the fatty acid is between 15:85 and 90:10, the C4-C6 fatty acid includes 2-methylpropanoic acid, and the ratio of the total C4-C6 fatty acid and C7-C9 branched fatty acid in the total fatty acids composing the ester is at least 20 mol%. The working fluid composition for a refrigerating machine according to the invention comprises the refrigerating machine oil, a difluoromethane refrigerant and/or an unsaturated fluorinated hydrocarbon refrigerant.
The method for cleaning a reactor of the present invention comprises passing a solvent through a wax-fraction hydrocracking apparatus which is charged with a catalyst and to which supply of a wax fraction is stopped, wherein the solvent comprising at least one oil selected from a group consisting of hydrocarbon and vegetable oils, and having a sulfur content of less than 5 ppm and being in a liquid state at 15°C.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD (Japan)
Inventor
Tasaka, Kazuhiko
Abstract
In a process for producing hydrocarbons according to the present invention, estimated production rates for a light hydrocarbon oil and a heavy hydrocarbon oil are respectively determined based on a set reaction temperature used when the hydrocarbons are synthesized by a Fischer-Tropsch synthesis reaction, and the discharge flow rates of the light hydrocarbon oil and the heavy hydrocarbon oil from temporary storage buffer tanks (91, 92) during supply to a fractionator (40) are respectively controlled so as to be equal to the respective estimated production rates.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
Inventor
Tasaka, Kazuhiko
Abstract
Disclosed is a method for the start-up of a rectifying column to which a hydrocracking product produced by the hydrocracking of a wax fraction contained in a Fischer-Tropsch synthetic oil in a wax fraction hydrocracking process is to be supplied and in which the hydrocracking product is fractionated. The method comprises a preheating step of carrying out the preheating of the rectifying column using a hydrocarbon oil which contains at least a portion of the hydrocracking product and has a liquid form at ambient temperature and ambient pressure.
An object of the present invention is to provide a method for microbiologically producing astaxanthin of high concentration at low cost while suppressing production of canthaxanthin. Specifically, the present invention relates to a method for producing carotenoids including astaxanthin comprising culturing a bacterium that concurrently produces astaxanthin and canthaxanthin in a medium containing biotin, wherein a ratio of concentration of produced canthaxanthin to concentration of produced astaxanthin in a culture product after the end of culture in the medium is lower than that in a culture product after the end of culture in a biotin-free medium.
C12P 23/00 - Preparation of compounds containing a cyclohexene ring having an unsaturated side chain containing at least ten carbon atoms bound by conjugated double bonds, e.g. carotenes
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
CHIYODA CORPORATION (Japan)
Inventor
Hodoshima, Shinya
Yagi, Fuyuki
Wakamatsu, Shuhei
Kawazuishi, Kenichi
Abstract
It is avoided that the sulfur compounds originating from the castable is mixed into produced synthesis gas, the mixed sulfur compounds are separated and collected with carbon dioxide, the collected carbon dioxide is recycled as raw material gas and then the sulfur compounds is directly supplied to the reformer to consequently degrade the reforming catalyst in the reformer by sulfur poisoning. The carbon dioxide separated and collected in the carbon dioxide removal step is introduced into the desulfurization apparatus of the desulfurization step or the sulfur compounds adsorption apparatus before being recycled to the reformer to remove the sulfur compounds.
C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
CHIYODA CORPORATION (Japan)
Inventor
Hodoshima, Shinya
Yagi, Fuyuki
Wakamatsu, Shuhei
Kawazuishi, Kenichi
Abstract
A situation where sulfur compounds originating from a castable are mixed into synthesis gas produced by way of a reforming reaction and the mixed sulfur compounds are separated and collected with carbon dioxide and further fed into a reformer to thereby degrade the reforming catalyst of the reformer by sulfur poisoning is avoided. Purge gas that is steam or steam-containing gas is made to flow into the piping to be used for a synthesis gas production apparatus and dried out to remove the sulfur compounds contained in the castable prior to the start-up of operation of the synthesis gas production apparatus, in order to prevent the sulfur compounds from being released by hot synthesis gas.
B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
C01B 3/24 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons
28.
HYDROCRACKING PROCESS AND PROCESS FOR PRODUCING HYDROCARBON OIL
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD (Japan)
Inventor
Tasaka, Kazuhiko
Tanaka, Yuichi
Iwama, Marie
Abstract
A hydrocracking process for a wax fraction that includes a wax fraction hydrocracking step of hydrocracking a wax fraction contained within liquid hydrocarbons synthesized by a Fischer-Tropsch synthesis reaction, thereby obtaining a hydrocracked product, a fractional distillation step of supplying the hydrocracked product to a fractionator in which a bottom cut temperature is set to a constant value, and obtaining at least a middle distillate and a bottom oil from the fractionator, a recycling step of resupplying all of the bottom oil to the wax fraction hydrocracking step, and a hydrocracking control step of controlling the wax fraction hydrocracking step using a flow rate of the bottom oil as an indicator.
The present invention relates to a method for producing a monocyclic aromatic compound that allows the monocyclic aromatic compound to be produced efficiently from a hydrocarbon oil containing a polycyclic aromatic compound, without using a high-pressure hydrogen gas, and more particularly to a method for producing a monocyclic aromatic compound from a hydrocarbon oil containing a polycyclic aromatic compound, which comprises: adding water to the hydrocarbon oil containing the polycyclic aromatic compound; and contacting a mixture of the hydrocarbon oil and the water with a catalyst containing at least titanium.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
Inventor
Tasaka, Kazuhiko
Tanaka, Yuichi
Iwama, Marie
Abstract
A hydrocracking process that includes a wax fraction hydrocracking step of hydrocracking the wax fraction contained within a Fischer-Tropsch synthetic oil to obtain a hydrocracked product, a gas-liquid separation step of using a multi-stage gas-liquid separator to separate the hydrocracked product into a gas component, a heavy oil component and a light oil component, a specific component content estimation step of determining the flow rate ratio between the heavy oil component and the light oil component, and using this flow rate ratio to determine an estimated value for the content of a specific hydrocarbon component contained within the hydrocracked product, and a control step of controlling the operation of the wax fraction hydrocracking step on the basis of this estimated value, so that the content of the specific hydrocarbon component falls within a predetermined range.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD (Japan)
Inventor
Onishi, Yasuhiro
Kato, Yuzuru
Yamada, Eiichi
Abstract
A hydrocarbon synthesis reaction apparatus includes a reactor, and a synthesis gas supply line through which a synthesis gas is supplied to the reactor, and syntheses hydrocarbons by contacting the synthesis gas and the catalyst slurry in the reactor. The hydrocarbon synthesis reaction apparatus includes a spare supply line which is connected to the synthesis gas supply line, and supplies inert gas or hydrogen gas to the reactor through the synthesis gas supply line when supply of the synthesis gas to the synthesis gas supply line from the synthesis gas supply device is stopped, and a fluid heating device which heats at least one of a fluid which flows through a flowing line of the synthesis gas supply line located closer to the reactor than a portion connected with the spare supply line, and a fluid which flows through the spare supply line.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
Inventor
Onishi, Yasuhiro
Abstract
A hydrocarbon synthesis reaction apparatus synthesizes hydrocarbons by a Fischer-Tropsch synthesis reaction. The apparatus includes a reactor; a flowing line; a first cooling unit; a second cooling unit; a first separating unit which separates the liquid hydrocarbons condensed by the first cooling unit from the gaseous hydrocarbons; and a second separating unit which separates the liquid hydrocarbons condensed by the second cooling unit from the gaseous hydrocarbons. The first cooling unit cools the hydrocarbons which flow through the flowing line to a temperature range equal to or lower than a condensing point at which a wax fraction condenses, and higher than a freezing point at which the wax fraction solidifies. The second cooling unit cools the hydrocarbons which flow through the flowing line to a temperature range lower than the temperature to which the gaseous hydrocarbons are cooled by the first cooling unit, and higher than a freezing point at which a middle distillate solidifies.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
Inventor
Iwama, Marie
Abstract
A liquid fuel producing method which synthesizes hydrocarbons from a synthesis gas by a Fisher-Tropsch synthesis reaction and produces liquid fuels by using the hydrocarbons, the method includes: subjecting the hydrocarbons to a pretreatment in the presence of a hydrogen by using a catalyst for the pretreatment in which at least one kind of metal selected from metals of Groups 6, 7, 8, 9, 10, 11, and 14 of the Periodic Table is supported on a carrier; and hydroprocessing the hydrocarbons by using a hydroprocessing catalyst after the pretreatment.
B01J 23/46 - Ruthenium, rhodium, osmium or iridium
C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
C10G 45/10 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing platinum group metals or compounds thereof
C10G 47/18 - Crystalline alumino-silicate carriers the catalyst containing platinum group metals or compounds thereof
C10G 65/02 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
Inventor
Onishi, Yasuhiro
Yamada, Eiichi
Abstract
A catalyst separation system is provided with: a reactor where hydrocarbons are synthesized by a chemical reaction of a synthesis gas including carbon monoxide gas and hydrogen gas as main components, and a catalyst slurry having solid catalyst particles suspended in a liquid; filters which separate the hydrocarbons and the catalyst slurry; and a gas-liquid separator which separates the liquid hydrocarbons flowing out of the filters into gas hydrocarbons and liquid hydrocarbons. In the catalyst separation system, the gas-liquid separator has a plurality of branch pipes which extend from the filters, and a collecting pipe which collects a fluid which flows through the branch pipes, and has a larger diameter than the branch pipes; and the collecting pipe is a ring- shaped header.
C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
B01J 8/22 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid
The present invention provides a method for obtaining a carotenoid from a culture of a carotenoid-producing bacterium at high yield. Specifically, the present invention includes a method in which a culture of the carotenoid and a carotenoid- producing bacterium belonging to the genus Paracoccus is precipitated under pH 5.5 or lower. The carotenoid may include at least one of astaxanthin, canthaxanthin, zeaxanthin, .beta.- cryptoxanthin, phoenicoxanthin, adonixanthin, echinenone, asteroidenone and 3- hydroxyechinenone, and the step of precipitating may be carried out by at least one of centrifugation, separation by filtration and decantation.
C12P 23/00 - Preparation of compounds containing a cyclohexene ring having an unsaturated side chain containing at least ten carbon atoms bound by conjugated double bonds, e.g. carotenes
The present invention provides a method for producing a carotenoid, which comprises culturing a carotenoid-producing bacterium in an amino acid- supplemented medium, and collecting the carotenoid from the resulting cultured product, wherein the amino acid is at least one selected from the group consisting of glutamic acid, aspartic acid, glutamine, asparagine, alanine, glycine, serine, threonine, arginine, tyrosine, proline, phenylalanine and leucine, and salts thereof. 26
C12P 23/00 - Preparation of compounds containing a cyclohexene ring having an unsaturated side chain containing at least ten carbon atoms bound by conjugated double bonds, e.g. carotenes
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD (Japan)
Inventor
Onishi, Yasuhiro
Kato, Yuzuru
Yamada, Eiichi
Abstract
A hydrocarbon synthesis reaction apparatus which synthesizes a hydrocarbon compound by a chemical reaction of a synthesis gas including a hydrogen and a carbon monoxide as the main components, and a slurry having solid catalyst particles suspended in a liquid, the apparatus is provided with: a reactor in which the synthesis gas contacts with the slurry; and an unreacted gas supply device which draws unreacted gas from the reactor, then pressurizes the unreacted gas, and supplies the unreacted gas to a constituent device which constitutes the hydrocarbon synthesis reaction apparatus.
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION (Japan)
INPEX CORPORATION (Japan)
JX NIPPON OIL & ENERGY CORPORATION (Japan)
JAPAN PETROLEUM EXPLORATION CO., LTD. (Japan)
COSMO OIL CO., LTD. (Japan)
NIPPON STEEL ENGINEERING CO., LTD. (Japan)
Inventor
Onishi, Yasuhiro
Yamada, Eiichi
Abstract
A hydrocarbon synthesis reaction apparatus which synthesizes a hydrocarbon compound by a chemical reaction of a synthesis gas including hydrogen and carbon monoxide as the main components, and a slurry having solid catalyst particles suspended in a liquid, the hydrocarbon synthesis reaction apparatus is provided with: a reactor which contains the slurry; a synthesis gas introduction part which introduces the synthesis gas into the reactor; and a synthesis gas heating part which is provided in the synthesis gas introduction part to heat the synthesis gas to be introduced into the reactor.
The lubricating base oil of the invention has a urea adduct value of not greater than 4 % by mass, a kinematic viscosity at 40°C of 25-50 mm2/s, a viscosity index of 140 or greater, a CCS viscosity at -35°C of not greater than 15,000 mPa.cndot.s and a flash point of 250°C or higher. The method for producing a lubricating base oil of the invention comprises a step of hydrocracking/hydroisomerizing a feedstock oil containing normal paraffins so as to obtain a treated product having an urea adduct value of not greater than 4 % by mass, a kinematic viscosity at 40°C of 25-50 mm2/s, a viscosity index of 140 or greater, a CCS viscosity at -35°C of not greater than 15,000 mPa.cndot.s and a flash point of 250°C or higher. The lubricating oil composition of the invention comprises the lubricating base oil of the invention.
C10M 171/02 - Specified values of viscosity or viscosity index
C10M 177/00 - Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
40.
LUBRICANT BASE OIL, METHOD FOR PRODUCTION THEREOF, AND LUBRICANT OIL COMPOSITION
The invention provides a lubricating base oil with a satisfactory balance among high levels for all the properties including high viscosity index, low-temperature viscosity characteristic, low viscosity, low evaporation loss and high flash point. The method for producing a lubricating base oil of the invention comprises a step of hydrocracking/hydroisomerizing a feedstock oil containing normal paraffins so as to obtain a treated product having an urea adduct value of not greater than 4 % by mass, a kinematic viscosity at 40°C of 7 mm2/s or greater and less than 15 mm2/s, a viscosity index of 120 or greater, a BF viscosity at -35°C of not greater than 10,000 mP .cndot. s, a flash point of 200°C or higher and a NOACK evaporation loss of not greater than 50 % by mass. The lubricating oil composition of the invention comprises the lubricating base oil of the invention.
C10M 177/00 - Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
41.
LUBRICANT OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE
The lubricating oil composition for an internal combustion engine of the invention comprises a lubricating base oil having a urea adduct value of not greater than 4 % by mass and a viscosity index of 100 or greater, an ash-free antioxidant containing no sulfur as a constituent element, and at least one compound selected from among ash-free antioxidants containing sulfur as a constituent element and organic molybdenum compounds.
patents
