Different Supports-Supported Cr-Based Catalysts for Oxidative Dehydrogenation of Isobutane with CO2
文献类型：期刊论文
| 作者 | Sun Guosong2,3; Huang Qingze4; Li Huiquan1; Liu Haitao1; Zhang Zhao1; Wang Xingrui1; Wang Qiuping4; Wang Jinshu2 |
| 刊名 | CHINESE JOURNAL OF CATALYSIS
 |
| 出版日期 | 2011-08-01 |
| 卷号 | 32期号:8页码:1424-1429 |
| 关键词 | MSU-1 zeolite chromium oxide isobutane carbon dioxide catalytic dehydrogenation isobutene |
| ISSN号 | 0253-9837 |
| 其他题名 | Chin. J. Catal. |
| 中文摘要 | The effect of supports (MSU-1,), gamma-Al2O3, AC (activated carbon), and MgO) on the catalytic activity of Cr-based catalysts was investigated for the dehydrogenation of isobutane with CO2. The catalytic activity was in the order of CrO,IMSU-1 > CrOx/Al2O3 > CrOx/AC > CrOx/MgO. The catalysts were characterized by N-2 adsorption-desorption, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and temperature-programmed desorption (TPD). The XRD results indicate that the active species of Cr are dispersed well on the supports. N-2 adsorption-desorption shows that the support MSU-1 has the largest surface area (804.2 m(2)/g), which results in excellent dispersion of Cr and highest activity. The XPS results reveal that Cr6+ is one of the active centers. The results of NH3-TPD indicate that catalyst activity is proportional to the amount of weak acid adsorption sites. As a result, the best support is the MSU-1 zeolite owing to its high specific area and a large amount of weak acid sites. The 59.2% conversion of isobutane and the 39.5% yield of isobutene are achieved on the CrOx/MSU-1 catalyst. |
| 英文摘要 | The effect of supports (MSU-1,), gamma-Al2O3, AC (activated carbon), and MgO) on the catalytic activity of Cr-based catalysts was investigated for the dehydrogenation of isobutane with CO2. The catalytic activity was in the order of CrO,IMSU-1 > CrOx/Al2O3 > CrOx/AC > CrOx/MgO. The catalysts were characterized by N-2 adsorption-desorption, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and temperature-programmed desorption (TPD). The XRD results indicate that the active species of Cr are dispersed well on the supports. N-2 adsorption-desorption shows that the support MSU-1 has the largest surface area (804.2 m(2)/g), which results in excellent dispersion of Cr and highest activity. The XPS results reveal that Cr6+ is one of the active centers. The results of NH3-TPD indicate that catalyst activity is proportional to the amount of weak acid adsorption sites. As a result, the best support is the MSU-1 zeolite owing to its high specific area and a large amount of weak acid sites. The 59.2% conversion of isobutane and the 39.5% yield of isobutene are achieved on the CrOx/MSU-1 catalyst. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 关键词[WOS] | OXIDE-BASED CATALYSTS ; CARBON-DIOXIDE ; PT-SN-K/GAMMA-AL2O3 CATALYST ; PROPANE DEHYDROGENATION ; PERFORMANCE ; ETHANE ; PROPYLENE ; ETHYLENE ; SILICA |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000294314000019 |
| 公开日期 | 2013-11-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6303]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 2.Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100022, Peoples R China 3.Guangxi Res Inst Chem Ind, Nanning 530001, Guangxi, Peoples R China 4.Guangxi Univ Nat, Coll Chem & Ecol Engn, Nanning 530006, Guangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun Guosong,Huang Qingze,Li Huiquan,et al. Different Supports-Supported Cr-Based Catalysts for Oxidative Dehydrogenation of Isobutane with CO2[J]. CHINESE JOURNAL OF CATALYSIS,2011,32(8):1424-1429. |
| APA | Sun Guosong.,Huang Qingze.,Li Huiquan.,Liu Haitao.,Zhang Zhao.,...&Wang Jinshu.(2011).Different Supports-Supported Cr-Based Catalysts for Oxidative Dehydrogenation of Isobutane with CO2.CHINESE JOURNAL OF CATALYSIS,32(8),1424-1429. |
| MLA | Sun Guosong,et al."Different Supports-Supported Cr-Based Catalysts for Oxidative Dehydrogenation of Isobutane with CO2".CHINESE JOURNAL OF CATALYSIS 32.8(2011):1424-1429. |
入库方式： OAI收割
来源：过程工程研究所
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