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Method and apparatus for selective removal of carbon monoxide

United States Patent

December 19, 2000
View the Complete Patent at the US Patent & Trademark Office
There is provided a method and apparatus for treatment of a hydrogen-rich gas to reduce the carbon monoxide content thereof by reacting the carbon monoxide in the gas with an amount of oxygen sufficient to oxidize at least a portion of the carbon monoxide in the presence of a catalyst in a desired temperature range without substantial reaction of hydrogen. The catalyst is an iridium-based catalyst dispersed on, and supported on, a carrier. In the presence of the catalyst, carbon monoxide in a hydrogen-rich feed gas is selectively oxidized such that a product stream is produced with a very low carbon monoxide content.
Borup; Rodney L. (East Rochester, NY), Skala; Glenn W. (Churchville, NY), Brundage; Mark A. (Pittsford, NY), LaBarge; William J. (Bay City, MI)
General Motors Corporation (Detroit, MI)
09/ 154,434
September 16, 1998
STATEMENT OF GOVERNMENT SUPPORT The Government of the United States of America has rights in this invention pursuant to Agreement No. DE-AC02-90CH10435 awarded by the U.S. Department of Energy.