| 简介 |
PROBLEM TO BE SOLVED : To provide a CO selective oxidation catalyst capable of cutting the CO concentration efficiently with a less amount of introduced oxygen even in the presence of methanol and a method for cutting the CO concentration in a methanol-modified gas using the CO selection/oxidation catalyst. SOLUTION : The CO selective oxidation catalyst has at least one kind of chemical compound selected from among an alkaline metal compound, an alkaline earth metal compound and a rare earth metal compound borne by a carrier together with ruthenium and platinum. In addition, the methanol-modified gas to which an oxidizing gas is added is brought into contact with this catalyst and only CO of the modified gas is selectively oxidized and removed. |
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