SOLID OXIDE FUEL CELL SYSTEM

Japanese Patent JP2016122584

A

PROBLEM TO BE SOLVED: To provide a solid oxide fuel cell system capable of sufficiently suppressing adverse effects of oxidation due to a minute amount of air which flowed back to the fuel electrode side while performing shutdown stop.SOLUTION: A solid oxide fuel cell system (1) comprises: a fuel cell module (2); an oxidant gas supply device (45); a reforming unit (20c); a fuel supply device (38); a water supply device (28); a combustion unit (18); and a controller (110) which performs shutdown stop. An oxidation suppression control unit (110a) is programmed so as to perform: a first temperature dropping step of dropping a temperature without supplying a raw fuel gas; a second temperature dropping step of dropping the temperature without combusting the raw fuel gas in the combustion unit in a temperature zone lower than the first temperature dropping step; and a fuel electrode reduction processing step of reducing minute oxidation caused in the fuel electrode by supplying a hydrogen gas to the fuel electrode after the shutdown stop.SELECTED DRAWING: Figure 9

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SHIMAZU MEGUMI
KOBAYASHI CHIHIRO
ABE TOSHIYA

JP2014262014A

July 07, 2016

December 25, 2014

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TOTO LTD

H01M8/04228; C01B3/38; H01M8/04303; H01M8/0606; H01M8/12

JP2013225486A	2013-10-31
JP2014194856A	2014-10-09
JP2013225484A	2013-10-31
JP2005340075A	2005-12-08
JP2010080192A	2010-04-08
JP2012221792A	2012-11-12

WO2013141403A1	2013-09-26
US20090253007A1	2009-10-08

Koichi Tsujii
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Makoto Watanabe

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