逆水煤气变换耦合乙烷脱氢高选择性制备乙烯反应的研究进展  

Coupling of ethane dehydrogenation with reversed water-gas shift reaction for ethylene synthesis

作　　者：葛欣[1] 

机构地区：[1]南京大学化学化工学院,江苏南京210093

出　　处：《化工进展》2010年第10期1811-1816,共6页Chemical Industry and Engineering Progress

基　　金：教育部留学归国人员科研启动基金资助

摘　　要：综述了近年来国内外有关利用逆水煤气变换耦合乙烷脱氢制备乙烯反应的研究状况,讨论了该反应的历程和机理。文献表明,担载型铬氧化物、含铬分子筛、纳米氧化物粒子等具有较好的催化活性,CO2的主要作用是通过逆水煤气变换来消除乙烷脱氢产物H2,并与表面积炭反应提高乙烷转化率及催化剂稳定性。反应的关键是选择适宜的催化剂。A review is presented on coupling of ethane dehydrogenation with reversed water-gas shift reaction for ethylene synthesis. Supported chromium oxide,nanostructured oxide and some zeolite catalysts exhibit excellent catalytic performance. The main function of CO2 is to remove the produced H2 by reversed water-gas shift reaction and to resist coke deposition during ethane dehydrogenation. The reaction mechanism is also discussed.

关 键 词：乙烷脱氢 逆水煤气变换 耦合作用 乙烯 

分 类 号：O636.1[理学—高分子化学]