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题名: Methanol to hydrocarbons reaction over HZSM-22 and SAPO-11: Effect of catalyst acid strength on reaction and deactivation mechanism
作者: Wang, Jinbang1, 2, 4;  Li, Jinzhe2;  Xu, Shutao2;  Zhi, Yuchun2;  Wei, Yingxu2;  He, Yanli2;  Chen, Jingrun2, 4;  Zhang, Mozhi2, 4;  Wang, Quanyi2;  Zhang, Wenna2, 4;  Wu, Xinqiang2, 4;  Guo, Xinwen1;  Liu, Zhongmin2, 3
关键词: HZSM-22 ;  SAPO-11 ;  Methanol-to-hydrocarbon ;  Acid strength ;  Mechanism
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2015-08-01
DOI: 10.1016/S1872-2067(15)60953-6
卷: 36, 期:8, 页:1392-1402
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: The conversion of methanol to hydrocarbons has been investigated over HZSM-22 and SAPO-11. Both of these catalysts possess one-dimensional 10-ring channels, but have different acidic strengths. Comparison studies and C-12/C-13 isotopic switching experiments were conducted to evaluate the influence of the acidic strength of the catalyst on the conversion of methanol, as well as its deactivation mechanism. Although the conversion of methanol proceeded via an alkene methylation-cracking pathway over both catalysts, the acidity of the catalysts had a significant impact on the conversion and product distribution of these reactions. The stability of the catalysts varied with temperature. The catalysts were deactivated at high temperature by the deposition of graphitic coke on their outer surface. Deactivation also occurred at low temperatures a result that the pores of the catalyst were blocked by polyaromatic compounds. The co-reaction of C-13-methanol and C-12-1-butene confirmed the importance of the acidity of the catalyst on the distribution of the hydrocarbon products. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词[WOS]: SOLID-STATE NMR ;  H-1 MAS NMR ;  TO-HYDROCARBONS ;  PRODUCT SELECTIVITY ;  MTO REACTION ;  HEPTAMETHYLBENZENIUM CATION ;  OLEFIN CONVERSION ;  MOLECULAR-SIEVE ;  ZEOLITE H-ZSM-5 ;  CO-REACTION
语种: 英语
WOS记录号: WOS:000359826000032
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146475
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.Dalian Univ Technol, Sch Chem Engn, PSU DUT Joint Ctr Energy Res, State Key Lab Fine Chem, Dalian 116024, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy,iChEM Collaborat Inn, Natl Engn Lab Methanol Olefins,State Energy Low C, Dalian 116023, Liaoning, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Wang, Jinbang,Li, Jinzhe,Xu, Shutao,et al. Methanol to hydrocarbons reaction over HZSM-22 and SAPO-11: Effect of catalyst acid strength on reaction and deactivation mechanism[J]. CHINESE JOURNAL OF CATALYSIS,2015,36(8):1392-1402.
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