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Fuel cell power generation system and method for operating the same

A fuel cell and power generation system technology, applied in the direction of fuel cells, fuel cell additives, separation methods, etc., can solve the problems of cost increase, volume increase, unfavorable distributed power supply, etc.

Inactive Publication Date: 2005-08-03
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the main body of the fuel cell for generating the inert gas has to be reserved for use, thereby causing an increase in the volume and cost of the system
This is obviously not conducive to the use of the system as a distributed power supply for household use

Method used

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  • Fuel cell power generation system and method for operating the same
  • Fuel cell power generation system and method for operating the same
  • Fuel cell power generation system and method for operating the same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0042] (First Embodiment: Adoption of Oxygen Adsorbent)

[0043] refer to figure 1 A first embodiment of the fuel cell power generation system and its operating method according to the present invention will be described. figure 1 It is a schematic diagram of the structure of the fuel cell power generation system.

[0044] The fuel cell power generation system according to this embodiment is a fuel cell power generation system equipped with a fuel reformer 60 and a fuel cell main body 4, such as figure 1 shown. This fuel cell power generation system includes valves 30a, 32, pipelines 30b, 31, condenser 34, pump 35, etc., which constitute a system for transporting the furnace exhaust gas 25 (raw material gas) emitted from the combustion furnace 10 of the fuel reformer 60. a raw material gas supply device; and an inert gas forming device 5A which is an inert gas forming device containing an oxidizable and reducible oxygen adsorbent 28 provided in lines 30b, 31 to adsorb oxyge...

no. 2 example

[0095] (Second embodiment: the adoption of oxygen absorption solution)

[0096] refer to Figure 4 A second embodiment of the fuel cell power generation system according to the present invention and its operating method are described. Figure 4 It is a schematic diagram of the structure of the fuel cell power generation system. However, the same components as those of the above-described first embodiment are given the same symbols as those used in the description of the above-described first embodiment, and thus repeated descriptions are omitted.

[0097] The fuel cell power generation system according to this embodiment is a fuel cell power generation system equipped with a fuel reformer 60 and a fuel cell main body 4, such as Figure 4 shown. This fuel cell power generation system includes valves 30a, 32, pipelines 30b, 31, condenser 34, pump 35, etc., which constitute a system for transporting the furnace exhaust gas 25 (raw material gas) emitted from the combustion furn...

no. 3 example

[0111] (The third embodiment: adopt amino (amine) solution)

[0112] refer to Figure 5 A third embodiment of the fuel cell power generation system and its operating method according to the present invention will be described. Figure 5 It is a schematic diagram of the structure of the fuel cell power generation system. However, the same components as those of the above-described first embodiment are given the same symbols as those used in the description of the above-described first embodiment, and thus repeated descriptions are omitted.

[0113] The fuel cell power generation system according to this embodiment is a fuel cell power generation system equipped with a fuel reformer 60 and a fuel cell main body 4, such as Figure 5 shown. This fuel cell power generation system has an inert gas forming device 5C as an inert gas forming structure. The apparatus comprises an aqueous ammonia solution 43 into which the anode off-gas 22 emitted from the anode 18 of the fuel cell b...

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Abstract

A fuel cell power generation system, equipped with a fuel reforming device ( 60 ) and a fuel cell body ( 4 ), includes valves ( 30 a , 32 ), pipelines ( 30 b , 31 ), a condenser ( 34 ), a pump ( 35 ), etc. for feeding a burner exhaust gas ( 25 ) (raw gas) discharged from a heating burner ( 10 ) of the fuel reforming device ( 60 ) into the fuel reforming device ( 60 ), and an inert gas formation device ( 5 A) including an oxidizable and reducible oxygen adsorbent ( 28 ), which is disposed in the pipelines ( 30 b , 31 ), and adsorbs oxygen in the burner exhaust gas ( 25 ) to remove oxygen from the burner exhaust gas ( 25 ) and form an inert gas ( 40 ). The fuel cell power generation system can reliably remove residual matter, without leaving it within the fuel reforming device ( 60 ), in a simple manner at a low cost and with a compact configuration.

Description

technical field [0001] The present invention relates to fuel cell power generation systems and methods of operation thereof. Specifically, the present invention relates to a technique for reliably removing residual substances such as combustible gas or moisture, oxygen, etc., at low cost and a small structure without leaving these residual substances in a fuel reformer. Background technique [0002] A fuel cell power generation system is mainly composed of a fuel reformer and a fuel cell body, and is attracting attention as a distributed power source for use in households and the like. The fuel reformer converts fuel gas such as city gas into hydrogen-rich reformed gas and supplies it to the fuel cell main body. The fuel cell body electrochemically reacts the reformed gas with air to generate electricity. [0003] In such a fuel cell power generation system, if the operation is momentarily stopped, combustible gases such as hydrogen or methane, moisture, etc. remain in var...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04C01B13/02
CPCH01M8/0612B01D53/0407B01D2257/104H01M8/04231B01D2258/0208Y02E60/50C01B2210/0046C01B13/0262C01B2203/066
Inventor 大本节男石桥直彦藤川圭司吉田博久近藤正实野岛繁安武聪信渡边悟米村将直
Owner MITSUBISHI HEAVY IND LTD
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