高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (12): 2085.

• 综合评述 • 上一篇    下一篇

逆水煤气变换耦合乙烷脱氢制备乙烯反应的研究

葛欣, 沈俭一   

  1. 南京大学化学化工学院介观材料分子工程学实验室, 南京 210093
  • 收稿日期:2000-10-12 出版日期:2001-12-24 发布日期:2001-12-24
  • 通讯作者: 沈俭一(1956年出生),男,博士,教授,博士生导师,从事吸附与多相催化及微观反应动力学等方面的研究.
  • 基金资助:

    国家自然科学基金(批准号:29973013);国家重点基础研究发展规划项目(G1999022408)资助

Studies on Coupling of Dehydrogenation of Ethane with Reversed Water-gas Shift Reaction for Ethylene

GE Xin, SHEN JianYi   

  1. College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
  • Received:2000-10-12 Online:2001-12-24 Published:2001-12-24

PDF (PC)

被引次数

65

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.SiO2和Silicalite-2分子筛担载的铬、锰、铁及稀土氧化物催化剂具有较好的催化活性.催化剂表面碱性位的存在有利于CO2的活化,消除乙烷脱氢产物H2和表面积炭,提高反应活性及催化剂的稳定性.进一步提高活性的关键是选择适宜的催化剂,以增加CO2的加氢活性.该耦合反应也是充分利用低碳烷烃和CO2资源的新途径.

关键词: 乙烷脱氢, 逆水煤气变换, 耦合作用, 乙烯

Abstract: Areview is presented on coupling of dehydrogenation of ethane with reversed watergas shift reaction for ethylene synthesis. The SiO2 and Silicalite2 supported chromium, manganese and iron oxide catalysts were found to exhibit a high performance in the dehydrogenation of ethane in the presence of CO2. CO2 can be activated by the surface basicity. The results show that the synergetic action of acidity and basicity is important to the increase of the catalytic activity. The function of CO2 is to abstract H2 and to resistant coke formation during the dehydrogenation of ethane. The reaction mechanism and effects of reaction condition on the dehydrogenation of ethane were also evaluated.

Key words: Ethane dehydrogenation, Reversed watergas shift reaction, Coupling, Ethylene

中图分类号: 

TrendMD: