摘要
本研究主要考察了不同组成的汽车尾气净化催化剂在无氧条件下对 CO水煤气反应和 HC蒸汽转换反应的催化性能。结果表明 ,在催化剂中添加一定量的稀土金属氧化物( La2 O3、Ce O2 )和过渡金属氧化物 ( Ni O) ,均有利于改善催化剂对 CO水煤气反应和 HC蒸汽转换反应的催化性能。此外还考察了水蒸汽含量以及空速的变化对反应的影响。
The performance of different catalysts in the water-gas shift and steam reforming reactions under rich condition was studied experimentally.Experimental results showed that rare earth oxides(La 2O 3、CeO 2)and transition metal oxides(NiO)can improve significantly the activity of automotive catalyst for the water-gas shift and steam reforming reactions.Influence of water vapor content and space velocity on the two reactions was also investigated.
出处
《工业催化》
CAS
2000年第5期29-33,共5页
Industrial Catalysis
关键词
水煤气反应
蒸汽转换反应
汽车尾气净化
催化剂
water-gas shift reaction
steam reforming reaction
exhaust gas
automotive catalyst
