| 摘要 |
<P>PROBLEM TO BE SOLVED: To lower CO concentration in a reformed gas to a value below a predetermined value without degrading desulfurization efficiency even when temperature variation of an ambient environment due to season or temporal change due to an individual difference of operation of a system occurs, to prevent voltage drop of a fuel cell from being caused, to improve reliability of the system, to improve durability of a catalyst of a low-temperature reactor, and to improve durability of the system. <P>SOLUTION: The fuel cell device is provided with: a fuel reform part 5 having a desulfurizer 1, a reformer 2, a CO converter 3, and a CO remover 4 on this order from the upstream side to produce hydrogen from a fuel gas; and a fuel cell part 6 generating power by reacting the hydrogen produced by the fuel reform part 5 with oxygen; and is structured to exchange heat between the fuel gas before being supplied to the desulfurizer 1 and the reformed gas on the downstream side of the reformer 2. By detecting the temperature of the desulfurizer 1 or/and the temperature of the CO converter 3, the temperature of the reformer 2 is controlled based on the detected temperature(s). <P>COPYRIGHT: (C)2008,JPO&INPIT |
