以锆铈固溶体为载体的金属氧化物催化剂对NO还原性能的研究

摘要

The catalytic activities of a series of metal oxides supported by CeO2-ZrO2 solid solution for selective catalytic reduction (SCR) of NO with propene as a reductant in the condition of oxygen-rich were investigated.The relationship of catalytic activity with the content of CeO2 and the load amount of metal oxides are investigated.The results showed that the best activity with the NO conversion is 64.8％ at 350℃ while CuO loading was 5％ and the content of CeO2 was 25％.%研究了负载于锆铈固溶体上的多种金属氧化物在富氧条件下,以丙烯为还原剂,选择性催化还原NO的性能,讨论了CeO<,2>含量,金属氧化物负载量对催化剂性能的影响.结果表明,CeO<,2>含量为25%,CuO负载量为5%时,催化剂的活性最好,350℃时NO转化率可达到64.8%.