| 摘要 |
Disclosed is an apparatus (4) for producing a reforming raw material for a fuel cell system (1), wherein a desulfurizer (6) for removing a sulfur component from a liquid fuel is disposed within a water vaporizer (5), which heats water (L) in a liquid phase state, through heat exchange with an off gas discharged from an SOFC stack (3), to vaporize the water(L), so that the desulfurizer (6) is immersed in the water (L) in the liquid phase state. According to this constitution, a desulfurizing agent within the desulfurizer (6) is heated to a temperature around the boiling point of the water (L) in the liquid phase state by heat exchange with the water (L) in the liquid phase state reservoired in the water vaporizer (5). In this case, the pressure of water (V) in a gas phase state within the water vaporizer (5) is regulated through an orifice (7) provided in a water vapor supply line (18). Accordingly, the boiling point of the water within the water vaporizer is regulated to a predetermined temperature. Thus, the desulfurizing agent within the desulfurizer (6) can be easily and reliably maintained at a proper temperature. |
