Patent ID: 7658908
Filing Date: 2010-02-09
Classification: B01J,C01B,C10K,H01M,Y02A,Y02E

Abstract:
1. A method of operating a fuel reforming system for feeding a reformed gas to a fuel cell, the fuel reforming system including, from the upstream side thereof, a carbon monoxide shift converter accommodating therein a carbon monoxide shift converting catalyst for converting carbon monoxide present in the reformed gas into carbon dioxide and a carbon monoxide remover accommodating therein a carbon monoxide removing precious metal catalyst for removing, through oxidation thereof, the carbon monoxide present in the reformed gas, in the mentioned order, comprising the steps of: supplying a hydrogen-containing inactive gas consisting of 10 volume % or lower of hydrogen gas and the remaining volume of inactive gas to said carbon monoxide shift converter and said carbon monoxide remover thereby to reduce said carbon monoxide shift converting catalyst and also to activate said carbon monoxide removing catalyst; and then initiating carbon monoxide shift reaction and carbon monoxide removal reaction on said reformed gas.