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Methanol to hydrocarbons reaction over HZSM-22 and SAPO-11: Effect of catalyst acid strength on reaction and deactivation mechanism
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
2015-08-01
DOI10.1016/S1872-2067(15)60953-6
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
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
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.
语种英语
WOS记录号WOS:000359826000032
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146475
专题中国科学院大连化学物理研究所
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
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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.
APA Wang, Jinbang.,Li, Jinzhe.,Xu, Shutao.,Zhi, Yuchun.,Wei, Yingxu.,...&Liu, Zhongmin.(2015).Methanol to hydrocarbons reaction over HZSM-22 and SAPO-11: Effect of catalyst acid strength on reaction and deactivation mechanism.CHINESE JOURNAL OF CATALYSIS,36(8),1392-1402.
MLA Wang, Jinbang,et al."Methanol to hydrocarbons reaction over HZSM-22 and SAPO-11: Effect of catalyst acid strength on reaction and deactivation mechanism".CHINESE JOURNAL OF CATALYSIS 36.8(2015):1392-1402.
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