Ru/TiO_2催化剂上甘油氢解制1,2-丙二醇  

Hydrogenolysis of Glycerol to 1,2-Propanediol over Ru/TiO_2 Catalyst

作　　者：冯建[1] 熊伟[1] 贾云[1] 王金波[1] 刘德蓉[1] 陈华[2] 李贤均[2] 

机构地区：[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

出　　处：《催化学报》2011年第9期1545-1549,共5页

基　　金：重庆市教育委员会科学技术研究项目(KJ111416);教育部科学技术研究重大项目(No.307023);重庆市科委自然科学基金(CSTC2010BB8280)~~

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170oC和3MPa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%.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.

关 键 词：钌 二氧化钛 甘油 氢解 1 2-丙二醇 

分 类 号：TQ223.162[化学工程—有机化工]