发明名称 |
Small pore molecular sieve supported copper catalysts durable against leanrich aging for the reduction of nitrogen oxides |
摘要 |
A method of using a catalyst comprises exposing a catalyst to at least one reactant in a chemical process. The catalyst comprises copper and a small pore molecular sieve having a maximum ring size of eight tetrahedral atoms. The chemical process undergoes at least one period of exposure to a reducing atmosphere. The catalyst has an initial activity and the catalyst has a final activity after the at least one period of exposure to the reducing atmosphere. The final activity is within 30% of the initial activity at a temperature between 200 and 500° C. |
申请公布号 |
GB201402348(D0) |
申请公布日期 |
2014.03.26 |
申请号 |
GB20140002348 |
申请日期 |
2010.04.19 |
申请人 |
JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
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