SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 51 ›› Issue (11): 199-215.DOI: 10.1016/j.cjche.2021.09.013

• Full Length Article • 上一篇    

A multi-functional Ru Mo bimetallic catalyst for ultra-efficient C3 alcohols production from liquid phase hydrogenolysis of glycerol

Guoxiao Cai1,2, Wei Xiong1, Susu Zhou1, Pingle Liu1, Yang Lv1, Fang Hao1, Hean Luo1, ChangYi Kong2   

  1. 1. College of Chemical Engineering, National & Local United Engineering Research Centre for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, China;
    2. Department of Environment and Energy System, Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
  • 收稿日期:2021-06-15 修回日期:2021-08-30 出版日期:2022-11-18 发布日期:2023-01-18
  • 通讯作者: Pingle Liu,E-mail:liupingle@xtu.edu.cn;Fang Hao,E-mail:haofang.happy@163.com
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (21908185, 22178294), Project of Hunan Provincial Natural Science Foundation of China (2021JJ30663), Project of Hunan Provincial Education Department (19B572, 20B547), Collaborative Innovation Center of New Chemical Technologies for Environmental Benignity and Efficient Resource Utilization, and National Department of Education Engineering Research Centre for Chemical Process Simulation and Optimization.

A multi-functional Ru Mo bimetallic catalyst for ultra-efficient C3 alcohols production from liquid phase hydrogenolysis of glycerol

Guoxiao Cai1,2, Wei Xiong1, Susu Zhou1, Pingle Liu1, Yang Lv1, Fang Hao1, Hean Luo1, ChangYi Kong2   

  1. 1. College of Chemical Engineering, National & Local United Engineering Research Centre for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, China;
    2. Department of Environment and Energy System, Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
  • Received:2021-06-15 Revised:2021-08-30 Online:2022-11-18 Published:2023-01-18
  • Contact: Pingle Liu,E-mail:liupingle@xtu.edu.cn;Fang Hao,E-mail:haofang.happy@163.com
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21908185, 22178294), Project of Hunan Provincial Natural Science Foundation of China (2021JJ30663), Project of Hunan Provincial Education Department (19B572, 20B547), Collaborative Innovation Center of New Chemical Technologies for Environmental Benignity and Efficient Resource Utilization, and National Department of Education Engineering Research Centre for Chemical Process Simulation and Optimization.

摘要: Ru and Mo bimetallic catalysts supported on active carbon modified by phosphotungstic acid (PW) were designed and applied in glycerol hydrogenolysis reaction. The physicochemical properties of the catalysts were characterized and the presence of active sites was investigated from the perspective of the glycerol hydrogenolysis performance. The MoOx is highly selective for the C—O bond cleavage of glycerol molecules, which can reasonably regulate the strong C—C bond cleavage activity of Ru nanoparticles. By using sequential deposition of Ru and Mo supported on mesoporous PW-C, the characterization results show that the combination of isolated low-valence MoOx with metal Ru particles can form “MoOx-Ru-PW”, which provides highly catalytic activity toward C—O bond cleavage, selectively producing more C3 alcohols (mainly 1,2(3)-propanediol). The glycerol conversion of 1% Mo/Ru/PW-C catalyst was 59.6%, the selectivity of C3 alcohol was 96.1%, and the selectivity of propanediol (1,2(3)-propanediol) was 94.9%. It is noteworthy that the selectivity of 1,3-propanediol reached 20.7% when the PW was 21.07% (mass). This study provides experimental evidence for the tandem dehydration and hydrogenation mechanism of the multifunctional Mo/Ru/PW-C catalyst.

关键词: Heterogeneous catalysis, Bimetallic catalyst, Glycerol hydrogenolysis, Ruthenium, Molybdenum, Phosphotungstic acid

Abstract: Ru and Mo bimetallic catalysts supported on active carbon modified by phosphotungstic acid (PW) were designed and applied in glycerol hydrogenolysis reaction. The physicochemical properties of the catalysts were characterized and the presence of active sites was investigated from the perspective of the glycerol hydrogenolysis performance. The MoOx is highly selective for the C—O bond cleavage of glycerol molecules, which can reasonably regulate the strong C—C bond cleavage activity of Ru nanoparticles. By using sequential deposition of Ru and Mo supported on mesoporous PW-C, the characterization results show that the combination of isolated low-valence MoOx with metal Ru particles can form “MoOx-Ru-PW”, which provides highly catalytic activity toward C—O bond cleavage, selectively producing more C3 alcohols (mainly 1,2(3)-propanediol). The glycerol conversion of 1% Mo/Ru/PW-C catalyst was 59.6%, the selectivity of C3 alcohol was 96.1%, and the selectivity of propanediol (1,2(3)-propanediol) was 94.9%. It is noteworthy that the selectivity of 1,3-propanediol reached 20.7% when the PW was 21.07% (mass). This study provides experimental evidence for the tandem dehydration and hydrogenation mechanism of the multifunctional Mo/Ru/PW-C catalyst.

Key words: Heterogeneous catalysis, Bimetallic catalyst, Glycerol hydrogenolysis, Ruthenium, Molybdenum, Phosphotungstic acid