| 摘要 |
A fuel cell system (100, 200) includes: a reforming section (33) generating fuel from water for reforming and a raw reforming material; a fuel feeding section (11a5) feeding the raw reforming material to the reforming section; a fuel cell (34) generating electricity using the fuel generated by the reforming section, and an oxidant gas; a combusting section (36) combusting an anode off gas containing a combustible component discharged from the fuel cell, with the oxidant gas; a catalytic combustor (28) combusting the combustible component contained in a combustion gas using a catalytic reaction; a temperature detecting section (28b) detecting a temperature of the catalytic combustor; an oxygen proportion changing section (15) changing a flow rate of oxygen introduced into the combusting section to an oxygen proportion set as an ideal oxygen flow rate; and a determining section (15) determining whether the catalytic reaction occurring in the catalytic combustor is degraded. |
