Fuel gas generating apparatus for a fuel cell

A fuel gas generating apparatus for a fuel cell comprising:

• a vaporizer that generates a fuel vapor by vaporizing a raw liquid fuel;
• a reformer that generates a reforming gas that includes hydrogen from the raw fuel gas that has been partially oxidized by adding reforming air to the fuel vapor generated by said vaporizer;
• a CO eliminator that generates a fuel gas having carbon monoxide eliminated by adding a CO eliminating air to said reforming gas generated by said reformer;
• and
• a CO elimination air amount control device that controls the supplied amount of said CO eliminating air during the warm-up of said CO eliminator so as to become larger than the supplied amount of CO eliminating air during the idle operation after completion of the warm-up, said CO elimination air amount control device further controlling the supplied amount of said CO eliminating air so as to decrease the supplied amount which was increased by said CO elimination air amount control device during said warm-up of said CO eliminator when the temperature of said CO eliminator is higher than a third predetermined temperature which is determined by the regenerating temperature of a CO eliminating catalyst in said CO eliminator.