Provided is a gas separation device configured to separate a non-hydrocarbon gas from a feed gas containing the non-hydrocarbon gas through use of a gas separation membrane, in which a decrease in operating rate can be suppressed, and economic efficiency is satisfactory. A first membrane module (1) and a second membrane module (2) are arranged in parallel to each other with respect to supply lines for a feed gas. gas lines for regeneration (14, 15) ((24, 25)), which are branched from a permeate gas line (13) ((23)) of the membrane module (1) ((2)), and which are joined to a feed gas line (21) ( (11) ) configured to supply the feed gas to the membrane module (2) ((1)), are provided. Under a state in which the feed gas is supplied to the membrane module (1), a permeate gas through the membrane module (1) is supplied, as a gas for regeneration, to the membrane module (2) through the gas lines for regeneration (14, 15). In this case, the membrane module (2) is brought into a non-operation state, and the membrane module (2) is regenerated.
B01D 53/22 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
The present invention provides an electrochemical device including electrodes of an electrochemical cell and conductive connection members, wherein sufficient bonding strength is achieved between each of the electrodes and the corresponding conductive connection member through thermal treatment carried out at a temperature lower than 1,000°C. The electrochemical cell includes a solid electrolyte membrane and a pair of electrodes provided on the electrolyte membrane. The conductive connection members are electrically connected to the respective electrodes by means of a bonding layer. The bonding layer contains a transition metal oxide having a spinel-type crystal structure.
A novel method of manufacturing a transition metal oxide having a spinel structure is provided. A mixture of powdery metals of metal elements constituting the transition metal oxide is heated in an oxidizing atmosphere to generate the transition metal oxide.
Here is disclosed a die 1 for forming a honeycomb structure provided with back pores 4 through which a forming material is introduced and slits 5 through which the forming material is extruded into a lattice-like shape, and the die comprises a first plate-like member 2 made of a super hard alloy containing tungsten carbide and a bonding agent and provided with the back pores 4 extending in a thickness direction; and a second plate-like member 2 bonded to the first plate-like member 2, made of the super hard alloy containing tungsten carbide and the bonding agent, and provided with the slits 5 connected to the back pores 4, wherein the bonding agent is dispersed in a lesser amount in a bonded part 6 between the first plate--like member 2 and the second plate-like member 3 than in the other part.
TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION (Japan)
Inventor
Yasutomi, Sei
Bando, Matsuo
Tamakoshi, Tomio
Abstract
There is provided a secondary battery system which converts direct current power supplied from secondary batteries (B1 to B3) into alternating current power by power converters (INV1 to INV3), and supplies the converted power to an electric power system on a load side, the secondary battery system including a control apparatus (1) that stops operating the operating the power converter and starts operating the stopped the power converter when a residual stored power level of the secondary battery corresponding to operating the power converter becomes to be not greater than a predetermined rate of a residual stored power level of the secondary battery corresponding to stopped the power converter.
TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION (Japan)
JAPAN WIND DEVELOPMENT CORPORATION LTD. (Japan)
NGK INSULATORS, LTD. (Japan)
Inventor
Bando, Matsuo
Tamakoshi, Tomio
Sakanaka, Yoshinori
Abstract
An output-power control apparatus is provided in an electric power system connecting a secondary battery system (2) and a power generator (3) in parallel, and controls output power of the electric power system. The output-power control apparatus detects output power of the power generator (3), and controls output voltage of the secondary battery system (2), based on a value obtained by subtracting the detected output power of the power generator (3) from an output power instruction for controlling the output power.
A process for reforming a hydrocarbon with carbon dioxide using a selectively permeable membrane reactor including a catalyst 1 for accelerating a chemical reaction and a selectively permeable membrane 3 exhibiting selective permeability, wherein a carbon dioxide reforming reaction of the hydrocarbon is accelerated by the catalyst 1 and a specific component among reaction products produced by the reaction is selectively separated by allowing the specific component to pass through the selectively permeable membrane 3, the process including adding steam to a raw material gas containing the hydrocarbon and the carbon dioxide and supplying the mixture to the selectively permeable membrane reactor. According to the present invention, inactivation of the catalyst due to coking can be prevented when carrying out the carbon dioxide reforming reaction of the hydrocarbon using the permeable membrane reactor, whereby the reaction can be efficiently and stably carried out over a long time.
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
B01D 53/22 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
A filtering method including the steps of preparing a water purifying apparatus 1 with a cell structure 2 having units for constituting cell structure 4, and a cap portion 3, and making raw water flow into cells 10 from one end, and filtered by partition walls 9 to take out filtrate water from the side of an outer peripheral surface 8. The cell structure 2 is so constructed that the ratio of maximum value to minimum value in water permeability among the partition walls 9 provided therein is within a range from of 110 to 300% in terms of percentage, and the cells 10 located on the side of an outer periphery 7 of the cell structure 2 have a greater water permeability.
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