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Reactor and fuel cell system therewith

A reactor, catalytic reaction technology, used in fuel cells, chemical/physics/physicochemical reactors, circuits, etc.

Inactive Publication Date: 2008-05-14
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because the high aspect ratio (ratio of depth to width) required for such trenches cannot be achieved at high yields by conventional photolithography or processing techniques.

Method used

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  • Reactor and fuel cell system therewith
  • Reactor and fuel cell system therewith
  • Reactor and fuel cell system therewith

Examples

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no. 1 example

[0038] Refer below Figures 1 to 4B A first embodiment of the present invention is described.

[0039] The fuel cell system according to the first embodiment is provided with a fuel tank 101 , a reformer 102 and a fuel cell stack 103 .

[0040] The fuel cell stack 101 contains a fuel for fuel cells, such as a mixed fluid of dimethyl ether (DME) and water or a mixed fluid of methanol and water. A fuel tank 101 is provided with a pressure vessel configured to be detachably connected.

[0041] The reformer 102 is connected to the fuel tank 101 by a flow line or any other suitable means. The reformer 102 receives fuel from the fuel tank 101 and facilitates a reforming reaction that converts the fuel into a hydrogen-containing reformed gas. The fuel may not only be in a liquid phase, but also in a gaseous phase formed by evaporation of the fuel. At least one reactor 100 is disposed in the bottom plate of the reformer 102, the details of which will be described below. In consid...

no. 2 example

[0080] A second embodiment of the present invention will be described below with reference to FIGS. 5A and 5B. In the following description, elements substantially the same as any of the elements described above refer to the same symbols, and detailed descriptions thereof are omitted.

[0081] The reactor 100 according to the second embodiment is generally provided with a microchannel (first member) 1, a microchannel (second member) 3, a casing 11 for accommodating the microchannels 1, 3 and a cover for covering them. A pair of lids on top and bottom9.

[0082] The microchannels 1, 3 are formed from the base material by machining. The microchannel 1 is provided with a plurality of protrusions (first protrusions) 2 , and the microchannel 3 is provided with a plurality of protrusions (second protrusions) 4 . Compared with the first embodiment described above, the protrusions 2 or 4 are not completely provided as gaps corresponding to the counterpart protrusions. In the exampl...

no. 3 example

[0097] Below, refer to Figure 7 A third embodiment of the present invention is described. In the following description, elements substantially the same as any of the elements described above refer to the same symbols, and detailed descriptions thereof are omitted.

[0098] The reactor 100 according to the third embodiment is generally provided with a microchannel (first member) 31, a microchannel (second member) 33, a microchannel 35, a microchannel for receiving the microchannels 31, 33, 35 Housing 37 and cover 41 for covering the top thereof.

[0099] The microchannels 31, 33, 35 are formed from the base material by machining. The microchannel 31 is provided with a plurality of protrusions 34 . The grooves between the protrusions 34 extend from one side of the microchannel 31 to the other. The base material, mechanical processing method and catalyst supported thereon are basically the same as those of the above-mentioned first embodiment, and the detailed description th...

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Abstract

A fuel cell system is provided with a reactor. The reactor is provided with a first member including plural first projections; a second member including plural second projections, the second projections being so dimensioned as to at least partly enter into gaps between the respective first projections; a catalyst supported on at least apart of surfaces of the first projections and the second projections; and a case to house the first member and the second member, the case including an inflow port and an outflow port.

Description

[0001] Cross References to Related Applications [0002] This application is based on and benefits from prior Japanese Patent Application No. 2004-378818 (filed December 28, 2004); the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a reactor carrying a catalyst for promoting a chemical reaction and a fuel cell system for generating electricity using hydrogen extracted from fuel by a reforming reaction in the reactor. Background technique [0004] Small reactors with reactors inside are currently under active development. Such a small reactor is preferably applied to various small devices such as portable phones, and has other advantages. The following advantages are pointed out in paragraph [0006] of Japanese Patent Application JP Kokai No. 2003-88754. [0005] (1) The reaction volume in the reactor is made smaller, whereby the effect of the surface area to volume ratio is more pronounced. This lead...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/06
CPCB01J19/0093C01B2203/0822B01J2219/0086B01J2219/00835C01B2203/107C01B3/323B01J2219/00822Y02E60/50B01J2219/00783C01B2203/0827C01B2203/1223B01J2219/00873C01B2203/0283C01B2203/066H01M8/0618C01B2203/0445C01B2203/1211H01M8/0631C01B2203/0233C01B2203/047Y02P20/10
Inventor 佐藤裕辅手塚史展桑田正弘北村英夫
Owner KK TOSHIBA
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