Catalytic dehydration of ethanol over post-treated ZSM-5 zeolites
文献类型：期刊论文
| 作者 | Xin, Hongchuan1; Li, Xiangping1; Fang, Yuan1; Yi, Xianfeng2; Hu, Wenhui1; Chu, Yueying2; Zhang, Feng1; Zheng, Anmin2; Zhang, Hongpeng1; Li, Xuebing1 |
| 刊名 | JOURNAL OF CATALYSIS
 |
| 出版日期 | 2014-04-01 |
| 卷号 | 312页码:204-215 |
| 关键词 | ZSM-5 Dehydration of ethanol Ethylene Desilication Dealumination Reaction mechanism Theoretical calculation |
| 英文摘要 | Microporous ZSM-5 zeolite was post-treated by desilication with sodium hydroxide, dealumination with oxalic acid, or both of them in a sequential way to finely tune the zeolite catalysts with hierarchically porous structure and varying acidity. In the catalytic dehydration of ethanol, diethyl ether and ethylene were two main products competitively formed at 200 degrees C and atmospheric pressure. The post-treated ZSM-5 catalysts could display stable ethanol conversion and ethylene selectivity within time-on-stream of around 12 h. The correlation between the steady-state ethylene selectivity and the amount of weak acid sites from ammonia temperature-programmed desorption (NH3-TPD) indicated that the weak acid sites facilitated the ethylene production during ethanol transformation under present reaction conditions. The reaction pathways for diethyl ether and ethylene formations from ethanol were investigated by theoretical calculation. Both the activation energies and natural charges of the transition states strongly supported that the selectivity for the diethyl ether tended to deteriorate with decreasing catalytic Bronsted acidity. (c) 2014 Elsevier Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 关键词[WOS] | TEMPERATURE-PROGRAMMED DESORPTION ; SOLID-STATE NMR ; CHEMICAL-SHIFTS ; ACID SITES ; MAS NMR ; THEORETICAL CALCULATION ; POROUS CATALYSTS ; HZSM-5 CATALYST ; ACTIVE-SITES ; AB-INITIO |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000335111300020 |
| 公开日期 | 2015-07-14 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/1387]  |
| 专题 | 武汉物理与数学研究所_磁共振应用研究部 |
| 作者单位 | 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan Ctr Magnet Resonance, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xin, Hongchuan,Li, Xiangping,Fang, Yuan,et al. Catalytic dehydration of ethanol over post-treated ZSM-5 zeolites[J]. JOURNAL OF CATALYSIS,2014,312:204-215. |
| APA | Xin, Hongchuan.,Li, Xiangping.,Fang, Yuan.,Yi, Xianfeng.,Hu, Wenhui.,...&Li, Xuebing.(2014).Catalytic dehydration of ethanol over post-treated ZSM-5 zeolites.JOURNAL OF CATALYSIS,312,204-215. |
| MLA | Xin, Hongchuan,et al."Catalytic dehydration of ethanol over post-treated ZSM-5 zeolites".JOURNAL OF CATALYSIS 312(2014):204-215. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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