| 摘要 |
<P>PROBLEM TO BE SOLVED: To simplify a system by eliminating a combustion part as compared with a conventional system which supplies an insufficient heat value by direct combustion of raw material, to reduce heat loss by effectively utilizing heat generated by a CO selective oxidation reaction, and furthermore to reduce size of a total system by eliminating or reducing size of a shift reactor requiring a great number of catalysts depending on selection of a reaction condition. <P>SOLUTION: In a reforming device for a fuel cell, a steam reaction is an exothermal reaction, and the CO selective oxidation reaction referred hereinafter is the exothermal reaction. In order to select an appropriate reforming condition, a carbon monoxide (CO) concentration in steam reformer outlet gas is controlled and reforming gas with higher CO concentration as compared with a conventional one is supplied to a CO selective oxidation reactor. Therefore, a heat value of the CO selective oxidation reaction increases, and a thermal balance between an endothermal reaction and the exothermal reaction is adjusted so as to provide a reforming device system for the fuel cell with high energy efficiency. <P>COPYRIGHT: (C)2004,JPO |
