Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol over Ru/ZrO2•xH2O Catalyst

被引：4
|
作者：
Liu Honglei [1 ]
Yuan Maolin [1 ]
Guo Caihong [1 ]
Li Ruixiang [1 ]
Fu Haiyan [1 ]
Chen Hua [1 ]
Li Xianjun [1 ]
机构：
[1] Sichuan Univ, Key Lab Green Chem & Technol, Minist Educ, Inst Homogeneous Catalysis,Coll Chem, Chengdu 610064, Sichuan, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2011年 / 32卷 / 07期
关键词：
ruthenium; zirconium dioxide; supported catalyst; cinnamaldehyde; selective hydrogenation; cinnamyl alcohol; LIQUID-PHASE HYDROGENATION; AMORPHOUS ALLOY CATALYST; UNSATURATED ALDEHYDE; PLATINUM CATALYSTS; CO; NANOPARTICLES; SUPPORT; SIZE; ALUMINA; METAL;
D O I：
10.3724/SP.J.1088.2011.10231
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A heterogeneous supported catalyst 7.5%Ru/ZrO2 center dot xH(2)O was prepared by co-precipitation method and characterized by N-2 adsorption-desorption, X-ray diffraction, X-ray photoelectron spectroscopy, and high resolution transmission electron microscopy. Its catalytic performance in cinnamaldehyde hydrogenation was investigated. The effects of temperature, hydrogen pressure, and solvent on the activity and selectivity for cinnamyl alcohol were tested. The results showed that the conversion of cinnamaldehyde increased with the increase in temperature and hydrogen pressure, but the product selectivity decreased. The catalyst showed better catalytic performance in a polar solvent than in a non-polar solvent. Using a mixture solvent composed of Et3N and H2O can remarkably raise the activity and the selectivity of the reaction. When the volume ratio of Et3N to H2O was 4, the temperature was 70 degrees C, and the reaction time was 6 h, the highest conversion (98.0%) and selectivity (85.2%) were obtained.
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收藏
页码：1256 / 1261
页数：6
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