Patent ID: 8323602

Claim:
A method for removing carbon monoxide (CO) from flue gas comprising carbon dioxide, CO and at least one non-condensable gas, said method comprising: generating said flue gas by oxyfuel combustion of a fuel in an oxyfuel combustion system; contacting said flue gas, or a CO-containing gas derived therefrom, at a first elevated temperature and at a first elevated pressure, with at least one catalyst bed comprising a CO-oxidation catalyst in the presence of oxygen (O 2 ) to convert CO to carbon dioxide and produce carbon dioxide-enriched gas comprising at least a portion of said non-condensable gas(es); recovering carbon dioxide from said carbon dioxide-enriched gas, or from a carbon dioxide-containing gas derived therefrom, to produce recovered carbon dioxide and carbon dioxide-depleted gas comprising at least a portion of said non-condensable gas(es).