Chemical Research in Chinese Universities ›› 2016, Vol. 32 ›› Issue (6): 1005-1009.doi: 10.1007/s40242-016-6130-6

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Effect of Zr Addition on Catalytic Performance of Cu-Zn-Al Oxides for CO2 Hydrogenation to Methanol

BEN Shunge, YUAN Fulong, ZHU Yujun   

  1. Key Laboratory of Functional Inorganic Material Chemistry(Heilongjiang University), Ministry of Education, School of Chemistry and Materials, Heilongjiang University, Harbin 150080, P. R. China
  • Received:2016-04-05 Revised:2016-08-25 Online:2016-12-01 Published:2016-09-19
  • Contact: YUAN Fulong, E-mail:fulongyuan2000@yahoo.com; ZHU Yujun, E-mail:yujunzhu@hlju.edu.cn E-mail:fulongyuan2000@yahoo.com;yujunzhu@hlju.edu.cn
  • Supported by:

    Supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Education of China(No.2013-1792) and the Ministry of Human Resources and Social Security, China(No.2013-277).

Abstract:

A series of 50%CuO-25%ZnO-25%Al(Zr) oxide catalysts was synthesized by a reverse co-precipitation method and characterized by XRD, N2 adsorption-desorption, H2-TPR, H2-TPD and CO2-TPD, and used as catalyst for CO2 hydrogenation to methanol under mild conditions(200-260℃ and 1-3 MPa). Consequently, H2-TPR exhibited that the dispersed CuO species increased with the zirconium content, while the H2-TPD showed that small amount of zirconia can increase the H2 desorption amount. As a result, Cat-2 and Cat-3 exhibited an enhanced H2-spillover effect, the most H2 desorption amount, which showed an optimum activity of about 7% methanol yield.

Key words: Carbon dioxide, Reverse co-precipitation, Methanol, Catalytic hydrogenation, Copper based catalyst