| Co/TiO2-SiO2催化剂上肉桂醛选择性加氢制备肉桂醇 |
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| 引用本文： | 刘迎新,李秋贵,严巍.Co/TiO2-SiO2催化剂上肉桂醛选择性加氢制备肉桂醇[J].化工学报,2009,60(1):98. |
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| 作者姓名： | 刘迎新 李秋贵 严巍 |
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| 作者单位： | 浙江工业大学催化加氢研发基地，绿色化学合成技术国家重点实验室培育基地 |
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| 基金项目： | 浙江省自然科学基金项目(Y405108) |
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| 摘 要： | 采用等体积浸渍法制备了系列Co/TiO2-SiO2催化剂，用于肉桂醛选择性加氢制备肉桂醇反应体系。系统考察了钴含量、焙烧温度、还原温度、稀土助剂等参数变化对钴催化剂选择性加氢性能的影响。结果表明，钴催化剂的活性和选择性与其表面钴的晶粒度有一定关系，较大尺寸的钴物种对肉桂醛加氢有利。当Co含量为15%、焙烧温度和还原温度均为823 K时，催化剂表现出良好的加氢性能。稀土助剂La和Ce的引入能改善Co /TiO2-SiO2催化剂表面活性组分钴的分散度，提高了钴催化剂的加氢性能。
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| 关 键 词： | 肉桂醛 肉桂醇 钴催化剂 选择性加氢 |
Selective hydrogenation of cinnamaldehyde to cinnamyl alcohol over Co/TiO2-SiO2 catalysts |
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| LIU Yingxin,LI Qiugui,YAN Wei.Selective hydrogenation of cinnamaldehyde to cinnamyl alcohol over Co/TiO2-SiO2 catalysts[J].Journal of Chemical Industry and Engineering(China),2009,60(1):98. |
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| Authors: | LIU Yingxin LI Qiugui YAN Wei |
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| Affiliation: | Research and Development Base of Catalytic Hydrogenation;State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology;Zhejiang University of Technology;Hangzhou 310032;Zhejiang;China |
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| Abstract: | A series of TiO2-SiO2 supported cobalt catalysts were prepared by using the incipient wetness impregnation method,and their activity and selectivity were evaluated for the selective hydrogenation of cinnamaldehyde to cinnamyl alcohol.The effects of Co loading,calcination temperature,reduction temperature and rare earth promoters on the hydrogenation performance of the catalysts were tested.The results showed that the catalytic performance of cobalt catalyst depended on the crystal size of Co on the catalyst... |
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| Keywords: | cinnamaldehyde cinnamyl alcohol cobalt catalyst selective hydrogenation |
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