高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (10): 1547.

• 研究简报 • 上一篇    下一篇

制备方法对超细Cu/ZnO/Al2O3催化剂上CO2+H2合成甲醇的影响

张玉龙, 王欢, 邓景发   

  1. 复旦大学化学系, 上海, 200433
  • 收稿日期:1993-10-25 修回日期:1994-03-28 出版日期:1994-10-24 发布日期:1994-10-24
  • 通讯作者: 邓景发.
  • 作者简介:张玉龙,男,31岁,博士后.
  • 基金资助:

    国家自然科学基金

Effect of Preparation Methods for Cu/ZnO/Al2O3 Catalyst on Methanol Synthesis from CO2+H2

ZHANG Yu-Long, WANG Huan, Deng Jing-Fa   

  1. Department of Chemistry, Fudan University, Shanghai, 200433
  • Received:1993-10-25 Revised:1994-03-28 Online:1994-10-24 Published:1994-10-24

PDF (PC)

关键词: 超细粒子, 合成甲醇, Cu/ZnO/Al2O3催化剂, CO2+H2

Abstract: Cu/ZnO/Al2O3 ultrafine particle catalysts were prepared by various methods such as coprecipitation, supercritical fluid drying, vacuum freezing drying and organic cpmplex decomposing.The characterization of catalysts and performance of methanol synthesis from CO2+H2 over these catalysts at 2 MPa were also investigated.The results indicate that the catalyst prepared by oxalate gel-coprecipitation shows higher BETarea and smaller particle size than by the other methods, and it also shows the highest activity and methanol selectivity.Methanol is directly formed from CO2 other than from CO via reverse water gas shift reaction.Thermodynamic equilibrium was reached at about 230℃, 2 MPa and GHSVof 3600 h-1。

Key words: Ultrafine particle, Methanol synthesis, Cu/ZnO/Al2O3 catalyst, CO2+H2

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