SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2021, Vol. 38 ›› Issue (10): 114-122.DOI: 10.1016/j.cjche.2021.07.004

• Catalysis, Kinetics and Reaction Engineering • 上一篇    下一篇

Aqueous-phase hydrogenation of levulinic acid over carbon layer protected silica-supported cobalt-ruthenium catalysts

Lihua Qian, Guojun Lan, Xiaoyan Liu, Zhenqing Li, Ying Li   

  1. Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou 310014, China
  • 收稿日期:2020-09-11 修回日期:2021-01-19 出版日期:2021-10-28 发布日期:2021-12-02
  • 通讯作者: Guojun Lan, Ying Li
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (21908197) and Natural Science Foundation of Zhejiang Province (LY17B030010).

Aqueous-phase hydrogenation of levulinic acid over carbon layer protected silica-supported cobalt-ruthenium catalysts

Lihua Qian, Guojun Lan, Xiaoyan Liu, Zhenqing Li, Ying Li   

  1. Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou 310014, China
  • Received:2020-09-11 Revised:2021-01-19 Online:2021-10-28 Published:2021-12-02
  • Contact: Guojun Lan, Ying Li
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21908197) and Natural Science Foundation of Zhejiang Province (LY17B030010).

摘要: The hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL) by using water as solvent is a crucial process in the production of fine chemicals from biomass. An ultrathin carbon layer coating CoRu bimetallic catalyst supported on silica (CoRu@C/SiO2) is prepared by using tannis-ligated cobalt-ruthenium complex on silica as precursors, and applied for catalyzed synthesis of GVL from LA. Because of the synergistic effect between cobalt and ruthenium, the addition of small amounts of Ru to Co catalysts can increase the catalytic activity in the aqueous hydrogenation of LA. The ultrathin carbon layer covered on the CoRu bimetallic catalyst can greatly reduce the leaching of active metals. The CoRu@C/SiO2 catalyst achieves high stability and is reused up to 5 runs without significant loss of performance in aqueous hydrogenation of levulinic acid.

关键词: Levulinic acid, Hydrogenation, Cobalt-ruthenium, Synergistic effect, Carbon coating

Abstract: The hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL) by using water as solvent is a crucial process in the production of fine chemicals from biomass. An ultrathin carbon layer coating CoRu bimetallic catalyst supported on silica (CoRu@C/SiO2) is prepared by using tannis-ligated cobalt-ruthenium complex on silica as precursors, and applied for catalyzed synthesis of GVL from LA. Because of the synergistic effect between cobalt and ruthenium, the addition of small amounts of Ru to Co catalysts can increase the catalytic activity in the aqueous hydrogenation of LA. The ultrathin carbon layer covered on the CoRu bimetallic catalyst can greatly reduce the leaching of active metals. The CoRu@C/SiO2 catalyst achieves high stability and is reused up to 5 runs without significant loss of performance in aqueous hydrogenation of levulinic acid.

Key words: Levulinic acid, Hydrogenation, Cobalt-ruthenium, Synergistic effect, Carbon coating