Acta Chimica Sinica ›› 2008, Vol. 66 ›› Issue (3): 295-300. Previous Articles     Next Articles

Original Articles


高志华 黄伟 阴丽华 王将永 谢克昌   

  1. (太原理工大学煤科学与技术教育部和山西省重点实验室 太原 030024)
  • 收稿日期:2007-07-16 修回日期:2007-08-30 出版日期:2008-02-14 发布日期:2008-02-14
  • 通讯作者: 黄伟

Liquid-Phase Preparation of Cu-Zn-Al-Zr Slurry Catalysts for direct synthesis DME from syngas and Its Characterization

GAO Zhi-Hua; HUANG Wei*; WANG Jiang-Yong; YIN Li-Hua ;XIE Ke-Chang   

  1. (Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024)
  • Received:2007-07-16 Revised:2007-08-30 Online:2008-02-14 Published:2008-02-14
  • Contact: GAO Zhi-Hua

Cu-Zn-Al-Zr slurry catalysts were prepared by complete liquid-phase technology and characterized by means of X-ray diffraction, N2 adsorption, H2 temperature-programmed reduction, X-ray photoelectron spectroscopy and NH3 temperature-programmed desorption. The above catalysts were evaluated in the reaction of synthesizing dimethyl ether(DME) from syngas. The results indicated that the different manners of adding Zr into CuZnAl catalyst had significant influence on catalyst’s property. When Zr and Al added simultaneously, the active component of catalyst was dispersed uniform and easily to reduce. Moreover, they had stable surface structure and same strong and weak acid sites with the CuZnAl catalyst. When the ratio of Al and Zr was 10:1, CO conversion and DME selectivity was equal to that of CuZnAl catalyst and the catalyst’s rheological property had been obviously improved.

Key words: liquid-phase technology, dimethyl ether, Cu-Zn-Al-Zr slurry catalyst, syngas