考察了SiO2 、活性炭 (AC)担载金属氧化物催化剂上二氧化碳氧化乙烷脱氢制乙烯的反应性能 ,表明Cr2 O3是最佳的金属活性组分 ,具有较好的二氧化碳氧化乙烷脱氢制乙烯反应性能。在 82 3～ 92 3K温度下 ,6Cr/SiO2 和 6Cr/AC催化剂的乙烷转化率分别为 12 .0 %～ 32 .1%和 8.5 %～ 2 9.2 % ,乙烯选择性分别为 85 .2 %～ 77.3%和 87.5 %～ 69.6%。考察 6Cr/SiO2 和 6Cr/AC催化剂表面CO2 对乙烷脱氢的作用表明 ,CO2 在参与乙烷脱氢反应过程中 ,有利于提高乙烷转化率和乙烯产率 ,同时对反应过程中产生的积炭具有抑制作用 The reaction performance of ethylene oxide from carbon dioxide to ethylene oxide on SiO2 and activated carbon (AC) -supported metal oxide catalysts was investigated. It shows that Cr2 O3 is the best metal active component and has better dehydrogenation of carbon dioxide to ethylene oxide Ethylene reactivity. The ethane conversion of 6Cr / SiO2 and 6Cr / AC catalysts ranged from 12.0% to 32.1% and from 8.5% to 22.2% at temperatures of 82 3 to 92 3K, respectively, and their ethylene selectivity was 85.2% ~ 77.3% and 87.5% ~ 69.6%. The effects of CO2 on 6Cr / SiO2 and 6Cr / AC catalysts on the dehydrogenation of ethane show that CO2 participation in the dehydrogenation of ethane is helpful to improve the conversion of ethane and the yield of ethylene, and at the same time, Coke has inhibitory effect