Chinese Journal of Catalysis ›› 2018, Vol. 39 ›› Issue (5): 964-972.DOI: 10.1016/S1872-2067(18)63014-1

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Green and efficient epoxidation of methyl oleate over hierarchical TS-1

Yue Wei, Gang Li, Qiang Lü, Chuanying Cheng, Hongchen Guo   

  1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2017-11-30 Revised:2018-01-02 Online:2018-05-18 Published:2018-04-19
  • Contact: 10.1016/S1872-2067(18)63014-1
  • Supported by:

    This work was supported by the Evonik Industries AG, and the Program for New Century Excellent Talents in University (NCET-04-0270).

Abstract:

The epoxidation of methyl oleate (MO) was conducted in the presence of aqueous H2O2 as the oxidant and hierarchical TS-1 (HTS-1) as the catalyst; the catalyst was synthesized using polyquaternium-6 as the mesopore template. The effects of various parameters, i.e., H2O2/C=C molar ratio, oxidant concentration, amount of the catalyst, reaction temperature, and time, were systematically studied. Furthermore, response surface methodology (RSM) was used to optimize the conditions to maximize the yield of epoxy MO and to evaluate the significance and interplay of the factors affecting the epoxy MO production. The H2O2/C=C molar ratio and catalyst amount were the determining factors for MO epoxidation, wherein the maximum yield of epoxy MO reached 94.9% over HTS-1 under the optimal conditions.

Key words: Hierarchical TS-1, Methyl oleate epoxidation, Hydrogen peroxide, Green oxidation, Response surface methodology, Reaction optimization