催化学报 ›› 2011, Vol. 32 ›› Issue (9): 1545-1549.DOI: 10.3724/SP.J.1088.2011.10534

• 研究论文 • 上一篇    下一篇

Ru/TiO2 催化剂上甘油氢解制 1,2-丙二醇

冯建 1, 熊伟 1, 贾云 1, 王金波 1, 刘德蓉 1, 陈华 2,*, 李贤均 2   

  1. 1重庆科技学院化学化工学院, 重庆 401331; 2四川大学化学学院绿色化学与技术教育部重点实验室, 四川成都 610064
  • 收稿日期:2011-06-10 修回日期:2011-07-25 出版日期:2011-09-09 发布日期:2015-01-24

Hydrogenolysis of Glycerol to 1,2-Propanediol over Ru/TiO2 Catalyst

FENG Jian1, XIONG Wei1, JIA Yun1, WANG Jinbo1, LIU Derong1, CHEN Hua2,*, LI Xianjun2   

  1. 1College of Chemistry and Chemical Engineering, Chongqing University of Science & Technology, Chongqing 401331, China; 2Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, China
  • Received:2011-06-10 Revised:2011-07-25 Online:2011-09-09 Published:2015-01-24

摘要: 采用浸渍法制备了负载型 Ru/TiO2 催化剂, 利用 X 射线衍射、X 射线光电子能谱、高分辨透射电镜、N2 吸附和电感耦合等离子体原子发射光谱等方法对催化剂进行了表征, 并考察了反应温度、H2 压力、甘油溶液浓度、催化剂用量和碱性添加物等因素对 Ru/TiO2 上甘油氢解反应性能的影响. 结果表明, 在 170 oC 和 3 MPa 的温和反应条件下, 以 LiOH 为添加物, 甘油转化率和 1,2-丙二醇选择性分别高达 89.6% 和 86.8%.

关键词: 钌, 二氧化钛, 甘油, 氢解, 1,2-丙二醇

Abstract: The supported Ru/TiO2 catalyst was prepared by the impregnation method. The physicochemical properties of the catalyst were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy, N2 adsorption, and inductively coupled plasma-atomic emission spectroscopy. The effects of reaction temperature, hydrogen pressure, glycerol concentration, catalyst amount, and base additives on the catalytic performance of Ru/TiO2 in the glycerol hydrogenolysis reaction were investigated. Under mild reaction conditions (170 oC, 3 MPa), using LiOH as additive, the conversion of glycerol and the selectivity for 1,2-propanediol were as high as 89.6% and 86.8%, respectively.

Key words: ruthenium, titania, glycerol, hydrogenolysis, 1,2-propanediol