| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel battery system that can reduce heat radiation loss of exhaust gas when temperature control of a hydrodesulfurization type desulfurizer is performed by using exhaust gas of a combustor.SOLUTION: A fuel battery system 100 has a desulfurizer 11, a reformer 13 for generating reformed gas by using raw material gas from the desulfurizer 11, a fuel battery 10 for generating power by using the reformed gas and oxidant gas, a combustor 14 for burning fuel battery off-gas, an exhaust gas passage 21 in which flue gas flows, a raw material gas heater 15 for heating raw material gas with the exhaust gas before the raw material flows into the desulfurizer 11, an oxidant gas passage 20 for supplying oxidant gas to the fuel battery, an oxidant gas branch passage 16 which is branched/confluent from/into the oxidant gas passage 20, a flow rate adjuster 17 for adjusting the oxidant gas flow rate of the oxidant gas branch passage 16, a cooler 18 for cooling the desulfurizer 11 by using the oxidant gas flowing in the oxidant gas branch passage 16, and a housing container 19 which is provided above the exhaust gas passage 21 and in which the raw material gas heater 15, the desulfurizer 11 and the cooler 18 are housed.SELECTED DRAWING: Figure 1 |
