SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 45 ›› Issue (5): 171-181.DOI: 10.1016/j.cjche.2021.07.015

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Enhanced recycling performance of bimetallic Ir-Re/SiO2 catalyst by amberlyst-15 for glycerol hydrogenolysis

Xin Ren1, Li Leng1, Yueqiang Cao1, Jing Zhang1, Xuezhi Duan1, Xueqing Gong2, Jinghong Zhou1, Xinggui Zhou1   

  1. 1 State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;
    2 Key Laboratory for Advanced Materials, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China
  • 收稿日期:2021-02-08 修回日期:2021-06-26 出版日期:2022-05-28 发布日期:2022-06-22
  • 通讯作者: Yueqiang Cao,E-mail:yqcao@ecust.edu.cn;Jinghong Zhou,E-mail:jhzhou@ecust.edu.cn
  • 基金资助:
    This work was supported by Ministry of Science and Technology of the People’s Republic of China, under the Research Fund for National Key R&D Program of China (2018YFB0604700), the Natural Science Foundation of China (22008067, 22008074, 22008072, 21991103), the China Postdoctoral Science Foundation (2020M681202 and 2021T140204) and Natural Science Foundation of Shanghai (20ZR1415700).

Enhanced recycling performance of bimetallic Ir-Re/SiO2 catalyst by amberlyst-15 for glycerol hydrogenolysis

Xin Ren1, Li Leng1, Yueqiang Cao1, Jing Zhang1, Xuezhi Duan1, Xueqing Gong2, Jinghong Zhou1, Xinggui Zhou1   

  1. 1 State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;
    2 Key Laboratory for Advanced Materials, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China
  • Received:2021-02-08 Revised:2021-06-26 Online:2022-05-28 Published:2022-06-22
  • Contact: Yueqiang Cao,E-mail:yqcao@ecust.edu.cn;Jinghong Zhou,E-mail:jhzhou@ecust.edu.cn
  • Supported by:
    This work was supported by Ministry of Science and Technology of the People’s Republic of China, under the Research Fund for National Key R&D Program of China (2018YFB0604700), the Natural Science Foundation of China (22008067, 22008074, 22008072, 21991103), the China Postdoctoral Science Foundation (2020M681202 and 2021T140204) and Natural Science Foundation of Shanghai (20ZR1415700).

摘要: Recycling performance of heterogeneous catalysts is of crucial importance especially for a batch reaction system. In this work, we demonstrate a strategy for enhancing recycling performance of Ir-Re/SiO2 catalyst synergized with amberlyst-15 in glycerol hydrogenolysis to produce 1,3-propanediol. Comprehensive characterization results reveal that the Re sites in the Ir-Re/SiO2 catalyst undergo irreversible segregation and oxidation. These hinder the formation of active Re—OH species and thus contribute to a complete and irreversible deactivation. However, the introduction of amberlyst-15 into the reactant mixture can restrain the oxidation process of Re sites and favor the formation of Re—OH species, and thus significantly enhance the catalytic recycling performance. The results demonstrated here could guide the development of excellent bimetallic catalysts with the desirable recycling performances for the reaction.

关键词: Glycerol hydrogenolysis, Ir-Re/SiO2 catalyst, Deactivation mechanism, Recycling performance, Amberlyst-15 promoter

Abstract: Recycling performance of heterogeneous catalysts is of crucial importance especially for a batch reaction system. In this work, we demonstrate a strategy for enhancing recycling performance of Ir-Re/SiO2 catalyst synergized with amberlyst-15 in glycerol hydrogenolysis to produce 1,3-propanediol. Comprehensive characterization results reveal that the Re sites in the Ir-Re/SiO2 catalyst undergo irreversible segregation and oxidation. These hinder the formation of active Re—OH species and thus contribute to a complete and irreversible deactivation. However, the introduction of amberlyst-15 into the reactant mixture can restrain the oxidation process of Re sites and favor the formation of Re—OH species, and thus significantly enhance the catalytic recycling performance. The results demonstrated here could guide the development of excellent bimetallic catalysts with the desirable recycling performances for the reaction.

Key words: Glycerol hydrogenolysis, Ir-Re/SiO2 catalyst, Deactivation mechanism, Recycling performance, Amberlyst-15 promoter