STOPPING METHOD OF FUEL CELL POWER GENERATING DEVICE
PROBLEM TO BE SOLVED: To provide an economically preferable stopping method for a fuel cell power generating device preventing catalyst oxidation by conducting rational purge preventing the intrusion of air in stopping the device. SOLUTION: This stopping method for the fuel cell power generating dev...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide an economically preferable stopping method for a fuel cell power generating device preventing catalyst oxidation by conducting rational purge preventing the intrusion of air in stopping the device. SOLUTION: This stopping method for the fuel cell power generating device having a fuel cell 10 generating electricity based on electrochemical reaction of fuel gas obtained by steam reforming hydrocarbon base raw fuel gas and air acting as oxidizing agent gas; a fuel reformer 11; a CO transformer 12; a CO removing device 13; and a steam generator 14 generating steam for reforming is as follows: Steam is passed in flammable gas line in various apparatuses, the flammable gas is purged, and at the point when outlet temperature of a catalyst layer in the fuel reformer is dropped at a given temperature, raw fuel gas is introduced to purge the steam in the line, and then the inside of the line is shut off from the outside air. COPYRIGHT: (C)2004,JPO |
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