Chinese Journal of Catalysis ›› 2018, Vol. 39 ›› Issue (10): 1664-1671.DOI: 10.1016/S1872-2067(18)63109-2

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Wheat flour-derived N-doped mesoporous carbon extrudes as an efficient support for Au catalyst in acetylene hydrochlorination

Jie Liu, Guojun Lan, Yiyang Qiu, Xiaolong Wang, Ying Li   

  1. Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China
  • Received:2018-04-06 Revised:2018-05-19 Online:2018-10-18 Published:2018-08-03
  • Contact: 10.1016/S1872-2067(18)63109-2
  • Supported by:

    This work was supported by Zhejiang Provincial Natural Science Foundation of China (LY17B030010).

Abstract:

We recently reported an N-doped mesoporous carbon (N-MC) extrudate, with major quaternary N species, prepared by a cheap and convenient method through direct carbonization of wheat flour with silica, which has excellent catalytic performance in acetylene hydrochlorination. Herein, we examined the activity of Au supported on N-MC (Au/N-MC) and compared it with that of Ausupported on nitrogen-free mesoporous carbon (Au/MC). The acetylene conversion of Au/N-MC was 50% at 180℃ with an acetylene space velocity of 600 h-1 and VHCl/VC2H2 of 1.1, which was double the activity of Au/MC (25%). The introduced nitrogen atoms acted as anchor sites that stabilized the Au3+ species and inhibited the reduction of Au3+ to Au0 during the preparation of Au/N-MC catalysts.

Key words: Au catalyst, Mercury free catalyst, Acetylene hydrochlorination, N doped mesoporous carbon