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学科主题: 物理化学
题名: Heptamethylbenzenium cation formation and the correlated reaction pathway during methanol-to-olefins conversion over DNL-6
作者: Li, Jinzhe1;  Wei, Yingxu1;  Xu, Shutao1;  Tian, Peng1;  Chen, Jingrun1;  Liu, Zhongmin1
通讯作者: 刘中民
关键词: Methanol conversion ;  MTO ;  Olefins ;  Catalysis ;  Mechanism
刊名: CATALYSIS TODAY
发表日期: 2014-05-01
DOI: 10.1016/j.cattod.2013.08.023
卷: 226, 期:1, 页:47-51
收录类别: SCI
文章类型: Article
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
英文摘要: Methanol conversion over SAPO molecular sieve DNL-6 was investigated from the view point of the reaction mechanism. The organic materials confined in the cavities of DNL-6 were mostly polymethylbenezenes. By combination of in situ NMR study with ex situ GC-MS measurements, the structure of heptamethylbenzenium ion (heptaMB(+)) formed during MTO reaction was definitely confirmed. Further evidences from the mass spectra and C-13 solid-state NMR spectra in the isotopic switch experiments showed that the side chain methylation mechanism was the main reaction route for olefin formation from hydrocarbon pool species. (C) 2013 Elsevier B.V. All rights reserved.
关键词[WOS]: ZEOLITE H-BETA ;  REACTION-MECHANISM ;  HYDROCARBON FORMATION ;  MTO CONVERSION ;  CO-REACTION ;  CATALYSIS ;  SAPO-34 ;  CHEMISTRY ;  DEACTIVATION ;  HSAPO-34
语种: 英语
WOS记录号: WOS:000332407200006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143825
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China

Recommended Citation:
Li, Jinzhe,Wei, Yingxu,Xu, Shutao,et al. Heptamethylbenzenium cation formation and the correlated reaction pathway during methanol-to-olefins conversion over DNL-6[J]. CATALYSIS TODAY,2014,226(1):47-51.
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