| 载体对草酸二甲酯加氢铜基催化剂性能的影响 |
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| 引用本文： | 李美兰,;马俊国,;徐东彦,;葛庆杰. 载体对草酸二甲酯加氢铜基催化剂性能的影响[J]. 青岛化工学院学报(自然科学版), 2014, 0(3): 283-286 |
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| 作者姓名： | 李美兰, 马俊国, 徐东彦, 葛庆杰 |
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| 作者单位： | [1]中国科学院大连化学物理研究所,辽宁大连116023; [2]青岛科技大学化工学院,山东青岛266042 |
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| 摘 要： | 分别以硅溶胶、SBA-15、二氧化硅粉末和ZSM-5为载体,采用蒸氨均匀沉积沉淀法,制备了一系列草酸二甲酯加氢制乙二醇Cu基催化剂（Cu质量分数为20%）,并对其催化草酸二甲酯加氢性能进行了考察。结果表明,以二氧化硅粉末为载体的催化剂加氢性能最佳,其草酸二甲酯转化率为100%,对乙二醇的选择性为84%。催化剂酸性强弱对加氢反应产物分布有一定影响,酸性较强的催化剂易使得副产物乙二醇单甲醚的量增加。活性组分Cu在载体表面的分散状况对反应的加氢深度有一定影响。
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| 关 键 词： | 草酸二甲酯 乙二醇 Cu 载体 |
Influence of Supports on Performance of Cu-based Catalyst for Dimethyl Oxalate Hydrogenation |
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| Affiliation: | LI Mei-lan , MA Jun-guo , XU Dong-yan , GE Qing-jie (1. Dalian h, stitute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; 2. College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China) |
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| Abstract: | A series of Cu-based catalysts were prepared by ammonia-evaporation method with silica sol,SBA-15,fumed silica and ZSM-5（50）as the support,respectively.The content of Cu in all the as-prepared catalysts is 20%.The performance of those catalysts for dimethyl oxalate hydrogenation was evaluated.The results show that the catalyst with fumed silica as the support exhibits the highest dimethyl oxalate conversion 100%and ethylene glycol selectivity 84%.The acidity of catalysts influences the distribution of products,while the dispersion of Cu affects the degree of hydrogenation. |
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| Keywords: | dimethyl oxalate ethylene glycol copper support |
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