| 摘要 |
PURPOSE: A method for catalytically converting carbon monoxide into carbon dioxide and hydrogen in hydrogen-containing gas mixture by using water, and a catalyst for this method are provided. This method can avoid the poisoning of a platinum-containing cathode catalyst during the oxidation of hydrogen, and has improved cold start performance for mobiles use. CONSTITUTION: In converting carbon monoxide(CO) in a gas mixture containing hydrogen(H2) and other oxidizable constituents with water to carbon dioxide(CO2) and H2(CO conversion) by passing the mixture over a shift catalyst at the CO conversion temperature, an oxidation-active shift catalyst based on noble metals is used and the operating temperature is adjusted and optionally maintained by partial oxidation of the oxidizable constituents of the gas mixture. Also provided is a catalyst for this process, which comprises platinum and/or palladium, iron or copper and cerium oxide on a finely-divided alumina, in the form of a coating on a monolithic ceramic or metal honeycomb, open-cell ceramic or metal foam molding, metal sheet, heat exchanger plates or irregular molding. |
