Solid polymer fuel cell power generation system and solid polymer fuel cell power generation method

摘要

PPROBLEM TO BE SOLVED: To provide a small-sized, highly efficient and maintenance-free PEFC power generating system, realizing stable and highly-developed desulfurization with a small quantity of desulfurizing agent, which can afford a repeated start and stop with short starting time, and a PEFC (polymer electrolyte fuel cell) power generating method. PSOLUTION: The PEFC power generating system comprises the PEFC, and a fuel reforming system generating hydrogen-rich gas from raw fuel, of which, the fuel reforming system comprises at least a desulfurizer, a reforming reaction device, and a selective CO oxidizing reactor. The PEFC power generating system also comprises a vapor condensing and separating means condensing and separating vapor from at least a part of the reformed gas before being supplied to the selective CO oxidizing reactor, and a system of adding the gas with the vapor condensed, separated and removed by the vapor condensing and separating means to the raw fuel by recycling. A hydrogenation adsorptive desulfurizing agent, containing at least Cu, Zn and Ni or/and Fe, is used, as a desulfurizing agent of the desulfurizer. PCOPYRIGHT: (C)2009,JPO&INPIT