Methanol conversion on ZSM-22, ZSM-35 and ZSM-5 zeolites: effects of 10-membered ring zeolite structures on methylcyclopentenyl cations and dual cycle mechanism
文献类型：期刊论文
| 作者 | Li, Xiujie2; Wang, Congxin2; Liu, Zhongmin1,3; Zhang, Mozhi1; Xu, Shutao1; Wei, Yingxu1; Li, Jinzhe1; Chen, Jingrun1; Wang, Jinbang1; Zhang, Wenna1,4 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:98页码:95855-95864 |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c6ra08884h |
| 文献子类 | Article |
| 英文摘要 | ZSM-22, ZSM-35 and ZSM-5, aluminosilicate zeolites possessing 10-membered ring channels, have been used in the present study as the catalysts of the MTO reaction. The diversities in dimensions and connection types of the 10-membered ring channels of the three zeolite catalysts make their performances in the MTO reaction quite different. As the key active species involved in the hydrocarbon-pool mechanism in the MTO reaction, methylcyclopentenyl cations (MCP+) and methylbenzenes have been captured by C-13 MAS NMR and GC-MS over the three zeolite catalysts during methanol conversion. The comparative studies of the retained organics generation over the zeolite catalysts indicate that due to the spatial confinement effects of the inorganic frameworks, the retained organic species generated in the catalysts during the MTO reaction are influenced by both their sizes and amounts. A detailed analysis of the confined organic species showed the formation of MCP with varied methyl substitutions over the three zeolites. C-12/C-13-methanol switch experiments were employed to investigate the reaction route for product generation. The differences in the participation levels of the methylbenzene and methylcyclopentadiene over the three zeolite catalysts imply that the formation and function of the organic species formed in the 10-membered ring channel were impacted by the chemical environment of the zeolites, and the methanol conversion that occurred in the 10-membered ring channels of the three zeolites also followed different reaction routes. |
| WOS关键词 | SOLID-STATE NMR ; TO-OLEFINS CONVERSION ; IN-SITU NMR ; BRONSTED ACID SITES ; CATALYTIC PERFORMANCE ; HYDROCARBONS REACTION ; CARBENIUM IONS ; CO-REACTION ; HEPTAMETHYLBENZENIUM CATION ; HETEROGENEOUS CATALYSIS |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000385633100059 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169834]  |
| 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; Wei, Yingxu |
| 作者单位 | 1.Chinese Acad Sci, Natl Engn Lab Methanol Olefins, IChEM Collaborat Innovat Ctr Chem Energy Mat, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiujie,Wang, Congxin,Liu, Zhongmin,et al. Methanol conversion on ZSM-22, ZSM-35 and ZSM-5 zeolites: effects of 10-membered ring zeolite structures on methylcyclopentenyl cations and dual cycle mechanism[J]. RSC ADVANCES,2016,6(98):95855-95864. |
| APA | Li, Xiujie.,Wang, Congxin.,Liu, Zhongmin.,Zhang, Mozhi.,Xu, Shutao.,...&Gao, Shushu.(2016).Methanol conversion on ZSM-22, ZSM-35 and ZSM-5 zeolites: effects of 10-membered ring zeolite structures on methylcyclopentenyl cations and dual cycle mechanism.RSC ADVANCES,6(98),95855-95864. |
| MLA | Li, Xiujie,et al."Methanol conversion on ZSM-22, ZSM-35 and ZSM-5 zeolites: effects of 10-membered ring zeolite structures on methylcyclopentenyl cations and dual cycle mechanism".RSC ADVANCES 6.98(2016):95855-95864. |
入库方式： OAI收割
来源：大连化学物理研究所
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。