Activity and characterization of modified Cr2O3/ZrO2 nano-composite catalysts for oxidative dehydrogenation of ethane to ethylene with CO2
文献类型：期刊论文
| 作者 | Deng, Shuang; Li, Huiquan; Li, Songgeng; Zhang, Yi |
| 刊名 | JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 268期号:1-2页码:169-175 |
| 关键词 | Cr2O3/ZrO2 nano-composite catalyst modifier CO2 dehydrogenation ethane ethylene |
| ISSN号 | 1381-1169 |
| 其他题名 | J. Mol. Catal. A-Chem. |
| 中文摘要 | Cr2O3/ZrO2 nano-composite catalysts modified with Ni, Fe, Co, Mn oxides respectively were synthesized by coupling co-precipitation with azeotropic distillation method. The effect of modifiers on the catalytic activity in the dehydrogenation of ethane with CO2 was investigated. The modifiers exhibited different effects on catalytic behavior. Fe, Co and Mn oxides markedly increased ethylene selectivity, but the Ni-5-Cr-10/Zr nano-composite catalyst mainly favored side reactions-the reforming and cracking reactions. The Fe-5-Cr-10/Zr nano-composite catalyst exhibited an excellent performance in this reaction, producing 50.05% ethylene yield at 53.72% ethane conversion at 650 degrees C. The modified Cr2O3/ZrO2 nanocomposite catalysts were characterized by BET, TEM, XRD, XPS, CO2-TPD and NH3-TPD techniques. The characterization indicated that weak acid sites are involved in ethane activation, and strong acid-base pairs promote the reforming and cracking reactions. The distribution of chromium species, oxygen species and base/acid property on the surface of catalyst cooperatively determined the catalytic activity in dehydrogenations of ethane to ethylene using CO2 as an oxidant. (c) 2007 Elsevier B.V. All rights reserved. |
| 英文摘要 | Cr2O3/ZrO2 nano-composite catalysts modified with Ni, Fe, Co, Mn oxides respectively were synthesized by coupling co-precipitation with azeotropic distillation method. The effect of modifiers on the catalytic activity in the dehydrogenation of ethane with CO2 was investigated. The modifiers exhibited different effects on catalytic behavior. Fe, Co and Mn oxides markedly increased ethylene selectivity, but the Ni-5-Cr-10/Zr nano-composite catalyst mainly favored side reactions-the reforming and cracking reactions. The Fe-5-Cr-10/Zr nano-composite catalyst exhibited an excellent performance in this reaction, producing 50.05% ethylene yield at 53.72% ethane conversion at 650 degrees C. The modified Cr2O3/ZrO2 nanocomposite catalysts were characterized by BET, TEM, XRD, XPS, CO2-TPD and NH3-TPD techniques. The characterization indicated that weak acid sites are involved in ethane activation, and strong acid-base pairs promote the reforming and cracking reactions. The distribution of chromium species, oxygen species and base/acid property on the surface of catalyst cooperatively determined the catalytic activity in dehydrogenations of ethane to ethylene using CO2 as an oxidant. (c) 2007 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | CHROMIUM-OXIDE CATALYSTS ; CARBON-DIOXIDE ; OXIDEHYDROGENATION ; BEHAVIORS ; ALUMINA ; REDOX ; XPS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000245897100026 |
| 公开日期 | 2013-10-15 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3303]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Ohio State Univ, Dept Chem & Biomol Engn, Columbus, OH 43210 USA 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Shuang,Li, Huiquan,Li, Songgeng,et al. Activity and characterization of modified Cr2O3/ZrO2 nano-composite catalysts for oxidative dehydrogenation of ethane to ethylene with CO2[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2007,268(1-2):169-175. |
| APA | Deng, Shuang,Li, Huiquan,Li, Songgeng,&Zhang, Yi.(2007).Activity and characterization of modified Cr2O3/ZrO2 nano-composite catalysts for oxidative dehydrogenation of ethane to ethylene with CO2.JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,268(1-2),169-175. |
| MLA | Deng, Shuang,et al."Activity and characterization of modified Cr2O3/ZrO2 nano-composite catalysts for oxidative dehydrogenation of ethane to ethylene with CO2".JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL 268.1-2(2007):169-175. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。