| Ni—Pd／C双金属催化剂上乙醇羰基化合成丙酸的研究 |
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| 引用本文： | 欧阳华勇. Ni—Pd／C双金属催化剂上乙醇羰基化合成丙酸的研究[J]. 化学工业与工程技术, 2009, 30(4): 8-11 |
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| 作者姓名： | 欧阳华勇 |
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| 作者单位： | 华东理工大学化工学院,上海,200237 |
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| 摘 要： | 考察了Ni—Pd／C双金属催化剂上乙醇气相羰基化合成丙酸的反应。实验结果表明，活性炭负载Ni—Pd双金属催化剂相比普通非贵金属催化剂具有更高的活性及选择性，优化的反应工艺条件为压力0．15MPa，温度220℃，nCO：nEtOH，n：2．0：1，乙醇液体空速1．5h^-1。在上述条件和少量碘乙烷存在下，乙醇羰基化反应产物中丙酸及丙酸酯的选择性可高达96．7％，通过GC—MS对反应产物分析，分析了反应过程的机理。
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| 关 键 词： | 羰基化 乙醇 丙酸 Ni—Pd双金属催化剂 |
Study on synthesizing propionic acid from carbonylation of ethanol on Ni- Pd bimetallic catalyst |
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| Ouyang Huayong. Study on synthesizing propionic acid from carbonylation of ethanol on Ni- Pd bimetallic catalyst[J]. Journal of Chemical Industry & Engineering, 2009, 30(4): 8-11 |
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| Authors: | Ouyang Huayong |
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| Affiliation: | Ouyang Huayong (East China University of Science and Technology, School of Chemical Engineering, Shanghai 200237,China) |
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| Abstract: | The process of the carbonylation of etheanol to propionic acid over Ni-Pd catalyst is studied.The results show that Ni-Pd bimetallic catalyst has higher activity and selectivity than ordinary metallic catalyst,and the optimal reacting conditions are 0.15 MPa,220℃,nco:n_(EtOH) = 2.0:1,1.5 h~(-1) liquid space velocity of ethanol.Under the above conditions and a little of EtI,the total selectivity of propionic acid and ethyl propionate is 96.7%.The mechanism of the reaction process is presented by the GC-MS results. |
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| Keywords: | Carbonylation Ethanol Propionic acid Ni-Pd bimetallic catalysts |
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