| 摘要 |
PURPOSE:To prevent the deterioration of a catalyst and to obtain the gaseous fuel having a high hydrogen partial pressure by highly desulfurizing a raw fuel with a copper-zinc-based desulfurizing agent and then steam-reforming the fuel using a specified catalyst. CONSTITUTION:A raw fuel (e.g. propane, natural gas, LPG, etc.) is desulfurized with a copper-zinc-based desulfurizing agent and then steam-reformed in the production of a gaseous fuel for a phosphoric acid electrolyte fuel cell using a gaseous fuel consisting essentially of hydrogen. In this case, the S/C is adjusted to 0.7-2.5 when an Ru-based catalyst is used as the steam reforming catalyst and to 1.5-3.5 when an Ni-based catalyst is used, and then the raw fuel is steam- reformed and converted to a gaseous fuel consisting essentially of hydrogen. Since the raw fuel is highly desulfurized, the deterioration of the catalyst is prevented, a gaseous fuel having a high hydrogen partial pressure is obtained, and the fuel cell is stably operated for a long time. |
