| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for selectively removing CO, for efficiently carrying out a reaction for reducing the CO concentration within a prescribed temperature range, i.e., the temperature range in which the oxidation reaction of the CO can be efficiently carried out and the side reaction such as a methanation reaction (CO+3H2O→CH4+H2O) is suppressed to efficiently reduce the CO concentration. SOLUTION: This method for selectively removing the CO in a hydrogen gas comprises bringing a mixed gas obtained by mixing a gas consisting essentially of the hydrogen and containing the CO, with oxygen gas, into contact with a catalyst for selectively oxidizing the CO to convert the CO into CO2, and a catalyst of Ru carried by a carrier containing Ce is used as the catalyst for selectively oxidizing the CO. |
