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Effect of Ce loading in CuO-ZnO-Al2O3/HZSM-5 on catalytic performance of dimethyl ether synthesis from carbon dioxide

ZHANG Yue,LI Jing,YAN Shenghu,LIU Jianwu,SHEN Jiefa   

  1. (Research Institute of Fine Chemical Engineering,Changzhou University,Changzhou 213164,Jiangsu,China)
  • Online:2011-03-05 Published:2011-03-05

Ce助剂对CuO-ZnO-Al2O3/HZSM-5在CO2加氢合成二甲醚中的性能影响

张 跃,李 静,严生虎,刘建武,沈介发   

  1. (常州大学精细化工研究所,江苏 常州 213164)

Abstract:

CuO-ZnO-Al2O3 was prepared by gel-network co-precipitation for synthesizing dimethyl ether from carbon dioxide by hydrogenation and the effects of LaCeCo and Zr promoters on catalyst performance were investigated. The results showed that after adding a small amount of Cethe selectivity of dimethyl ether reached 61.5% and the conversion rate of CO2 reached 40%.The physical-chemical propertise and catalytic performance of the catalysts were characterization by using BETXRDSEMTPR and H2-TPD techniques.

摘要:

采用凝胶网格共沉淀法制备二甲醚的催化剂CuO-ZnO-Al2O3/HZSM-5,考察不同助剂LaCeCoZr对其性能的影响。结果表明,加入助剂后,CO2转化率和二甲醚的选择性都有不同程度的提高,进行比较后发现尤其是加入Ce助剂后,二甲醚的选择性达到61.5%CO2的转化率达到40%。利用BETXRDSEMH2-TPRH2-TPD等表征方法对其物化性质进行表征。

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