高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (6): 926.

• 论文 • 上一篇    下一篇

CO2加氢合成甲醇催化反应中CO的作用

李基涛1,2, 区泽棠1, 陈明旦1,2, 张伟德1   

  1. 1. 香港浸会大学化学系, 香港;
    2. 厦门大学化学系、物理化学研究所, 厦门, 361005
  • 收稿日期:1997-04-24 出版日期:1998-06-24 发布日期:1998-06-24
  • 通讯作者: 李基涛,男,57岁,副研究员.
  • 作者简介:李基涛,男,57岁,副研究员.
  • 基金资助:

    香港浸会大学研究基金;厦门大学固体表面物理化学国家重点实验室资助

The Role of CO in the Synthesis of Methanol from the Hydrogenation of Carbon Dioxide

LI Ji-Tao1,2, Au-Chak-Tong1, CHEN Ming-Dan1,2, ZHANG Wei-De1   

  1. 1. Chemistry Department, Hong Kong Baptist Universitya, Hong Kong;
    2. Chemistry Department and Institute of Physical Chemistry, Xiamen University, Xiamen, 361005
  • Received:1997-04-24 Online:1998-06-24 Published:1998-06-24

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摘要： 研究了铜基催化剂上CO2加氢合成甲醇反应中掺人CO的作用,结果表明,在原料中添加少量CO,甲醇的选择性提高38%,收率提高25%;TPD-MS和TPSR-MS结果表明,CO能抑制催化剂表面起逆水汽变换作用的活性位对CO2的吸附,从而提高了CO2加氢合成甲醇的选抒性.

关键词: CO2加氢, 合成甲醇, CO的作用

Abstract: The effect of adding COto the raw gases for methanol synthesis from the hydrogenation of carbon dioxide over the CuO/ZnO/Al2O3 catalysts has been reported. Small amount of CO in the raw gases can increase the selectivity and yield of methanol by 38% and 25%, respectively. TPD MSand TPSR MS results indicate that COcan suppress the adsorption of CO2 on the sites, which bring about the reverse water gas shift reaction and hence promote the selectivity of methanol.

Key words: CO2 hydrogenation, Methanol synthesis, Effect of CO

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