| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system not requiring any nitrogen and hydrogen supplying device, prevented from lowering of catalytic property at stopping. <P>SOLUTION: A combustion gas recirculation line 4 is formed by connecting an outlet of a fuel combustion device 3 to an inlet of a reformer 1, and the combustion gas of the combustion device 3 is made to recirculate in the system through a reformer 1 by stopping supply of fuel and water to the reformer 1 when the operation of the fuel cell system is stopped. <P>COPYRIGHT: (C)2004,JPO |
