The effect of ethanol on the performance of CrOx/SiO2 catalysts during propane dehydrogenation
文献类型：期刊论文
| 作者 | Li, Lina1,2; Zhu, Wenliang1; Shi, Lei1; Liu, Yong1; Liu, Hongchao1; Ni, Youming1; Liu, Shiping1,2; Zhou, Hui1,2; Liu, Zhongmin1 |
| 刊名 | CHINESE JOURNAL OF CATALYSIS
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 37期号:3页码:359-366 |
| 关键词 | Propane Dehydrogenation Crox/sio2 Catalyst Ethanol Vapor Pretreatment Carbon Dioxide |
| ISSN号 | 0253-9837 |
| DOI | 10.1016/S1872-2067(15)61042-7 |
| 文献子类 | Article |
| 英文摘要 | The effects of ethanol vapor pretreatment on the performance of CrOx/SiO2 catalysts during the dehydrogenation of propane to propylene were studied with and without the presence of CO2. The catalyst pretreated with ethanol vapor exhibited better catalytic activity than the pristine CrOx/SiO2, generating 41.4% propane conversion and 84.8% propylene selectivity. The various catalyst samples prepared were characterized by X-ray diffraction, transmission electron microscopy, temperature-programmed reduction, X-ray photoelectron spectroscopy and reflectance UV-Vis spectroscopy. The data show that coordinative Cr3+ species represent the active sites during the dehydrogenation of propane and that these species serve as precursors for the generation of Cr3+. Cr3+ is reduced during the reaction, leading to a decrease in catalytic activity. Following ethanol vapor pretreatment, the reduced CrOx in the catalyst is readily re-oxidized to Cr6+ by CO2. The pretreated catalyst thus exhibits high activity during the propane dehydrogenation reaction by maintaining the active Cr3+ states. (C) 2016, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | OXIDATIVE DEHYDROGENATION ; OXIDE CATALYSTS ; CARBON-DIOXIDE ; CO2 ; PROPYLENE ; ETHYLBENZENE ; BEHAVIOR ; ALKANES ; METALS |
| WOS研究方向 | Chemistry ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000372214000004 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/171114]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Liu, Zhongmin |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab Methanol Olefins, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Lina,Zhu, Wenliang,Shi, Lei,et al. The effect of ethanol on the performance of CrOx/SiO2 catalysts during propane dehydrogenation[J]. CHINESE JOURNAL OF CATALYSIS,2016,37(3):359-366. |
| APA | Li, Lina.,Zhu, Wenliang.,Shi, Lei.,Liu, Yong.,Liu, Hongchao.,...&Liu, Zhongmin.(2016).The effect of ethanol on the performance of CrOx/SiO2 catalysts during propane dehydrogenation.CHINESE JOURNAL OF CATALYSIS,37(3),359-366. |
| MLA | Li, Lina,et al."The effect of ethanol on the performance of CrOx/SiO2 catalysts during propane dehydrogenation".CHINESE JOURNAL OF CATALYSIS 37.3(2016):359-366. |
入库方式： OAI收割
来源：大连化学物理研究所
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