Chinese Journal of Catalysis ›› 2013, Vol. 34 ›› Issue (8): 1496-1503.DOI: 10.1016/S1872-2067(12)60607-X

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Coking on micrometer- and nanometer-sized mordenite during dimethyl ether carbonylation to methyl acetate

Huifu Xuea, Xiumin Huanga, Evert Ditzelb, Ensheng Zhana, Meng Maa, Wenjie Shena   

  1. a State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b Hull Research and Technology Centre, BP Chemicals Limited, Hull HU128DS, UK
  • Received:2013-03-25 Revised:2013-04-26 Online:2013-08-16 Published:2013-07-30
  • Supported by:

    This work was supported by the National Basic Research Program of China (2013CB933100) and the National Natural Science Foundation of China (20973166).

Abstract: As compared to conventional micrometer-sized mordenite particles, nanometer-sized mordenite gave a much higher activity and better stability in dimethyl ether carbonylation to methyl acetate by suppressing the deposition of hard coke. A structural analysis revealed that intra-crystalline diffusion limitation of the reactants and products to and from the active sites inside the channels was greatly decreased by reducing the zeolite size to the nanometer size.

Key words: H-mordenite, Dimethyl ether, Carbonylation, Crystal size, Coking