Patent ID: 8039154

Claim:
A fuel cell system comprising: a fuel cell which generates electric power from a fuel gas and an oxidizing agent gas; a fuel gas supplying means which supplies the fuel gas to an anode side of the fuel cell; an oxidizing agent gas supplying means which supplies the oxidizing agent gas to a cathode side of the fuel cell; a raw material gas supplying means which supplies a raw material gas to be used in the production of the fuel gas; and a control means which controls the fuel gas supplying means, the oxidizing agent gas supplying means and the raw material gas supplying means such that during the starting of electricity generation of the fuel cell, the raw material gas supplying means purges at least the cathode side with the raw material gas, in which a sulfur compound is removed, before the fuel gas supplying means and the oxidizing agent gas supplying means supply the fuel gas and the oxidizing agent gas to the fuel cell, respectively, wherein the raw material gas comprises hydrogen and carbon.