Patent ID: 7544634
Filing Date: 2009-06-09
Classification: B01J,C01B,C10K,H01M,Y02A,Y02E

Abstract:
1. A carbon monoxide removing catalyst for oxidizing/removing carbon monoxide from a mixture gas by causing the mixture gas and an oxidizer to react on the catalyst, the mixture gas being obtained through a reforming process and containing hydrogen as a major component thereof and the carbon monoxide, the catalyst having received a reducing operation at the time of manufacture thereof; wherein said catalyst is formed by supporting ruthenium on a support, and prior to the oxidizing/removing operation of the carbon monoxide in the mixture gas through the reaction between the mixture gas and the oxidizer, 50% or more of ruthenium atoms present in a surface portion of the catalyst layer as determined by ESCA are present as ruthenium in the form of metal.