| 摘要 |
<P>PROBLEM TO BE SOLVED: To satisfy both shortening of starting time and enhancing of power generation efficiency in a fuel cell power generation system having a fuel treatment device and a fuel cell. <P>SOLUTION: In a fuel cell system comprising the fuel treatment device having a reforming catalyst and the fuel cell, in starting, the fuel treatment device is operated by an inner heat method in which a part of fuel to be reformed is oxidized to make a reformed heat source, and in a stationary operation, the fuel treatment device is operated by an outer heat method in which a reforming catalyst is heated by an outside heat source. Advantages of both of the inner heat type fuel treatment device having quick starting time and low efficiency and the outer heat type fuel treatment device having slow starting time and high efficiency can be exhibited. If an inner heat burner and an outer heat burner are used in starting, starting time can be more shortened than use of only the inner heat burner. When a combustion catalyst is used in the inner heat burner and a cluster burner is used in the outer heat burner, since metal is not heated to the unnecessary temperature, inexpensive metal can be used, and a system having quick starting time, high efficiency, and low cost can be provided. <P>COPYRIGHT: (C)2007,JPO&INPIT |
