| Vapor phase carbonylation of ethanol with Ni-Zn/c catalyst |
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| 引用本文： | 彭峰,黄仲涛. Vapor phase carbonylation of ethanol with Ni-Zn/c catalyst[J]. 中国化学工程学报, 1997, 5(3): 261-269 |
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| 作者姓名： | 彭峰 黄仲涛 |
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| 作者单位： | Department of Chemical Engineering，South China University of Technology，Department of Chemical Engineering，South China University of Technology Guangzhou 510641，China，Guangzhou 510641，China |
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| 基金项目： | Supported by the Guangdong Provincial Naturial Science Foundation of China. |
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| 摘 要： | Vapor phase carbonylation of ethanol with Ni/C and Ni-Zn/C catalyst was investigatedunder atmospheric pressure.Ni-Zn/C was found to have a significantly higher activity andselectivity than Ni/C.Effects of Zn and Ni loading on ethanol conversion and productdistributions were also investigated,and the sequence of metal loading was compared.The cata-lyst was characterized by XRD(X-ray diffraction)and SEM-EDS.The spectra of XRDdemonstrated that the catalyst structure was changed from crystalline to non-crystalline in theprocess of carbonylation.Stable iodide compound was formed due to the interaction betweenC_2H_5I and active metals.The authors believe that the active phase of carbonylation might havebeen non-crystalline.
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| 关 键 词： | ethanol carbonylation catalyst propionic acid |
| 收稿时间： | 1996-04-23 |
| 修稿时间： | |
Vapor phase carbonylation of ethanol with Ni-Zn/c catalyst |
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| PENG Feng,HUANG Zhongtao. Vapor phase carbonylation of ethanol with Ni-Zn/c catalyst[J]. Chinese Journal of Chemical Engineering, 1997, 5(3): 261-269 |
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| Authors: | PENG Feng HUANG Zhongtao |
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| Affiliation: | Department of Chemical Engineering, South China University of Technology, Guangzhou 510641, China |
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| Abstract: | Vapor phase carbonylation of ethanol with Ni/C and Ni-Zn/C catalyst was investigated under atmospheric pressure. Ni-Zn/C was found to have a significantly higher activity and selectivity than Ni/C. Effects of Zn and Ni loading on ethanol conversion and product distributions were also investigated, and the sequence of metal loading was compared. The catalyst was characterized by XRD (X-ray diffraction) and SEM-EDS. The spectra of XRD demonstrated that the catalyst structure was changed from crystalline to non-crystalline in the process of carbonylation. Stable iodide compound was formed due to the interaction between C2H5I and active metals. The authors believe that the active phase of carbonylation might have been non-crystalline. |
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| Keywords: | ethanol carbonylation catalyst propionic acid |
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