Enhancing ethylene selectivity in MTO reaction by incorporating metal species in the cavity of SAPO-34 catalysts

doi:10.1016/S1872-2067(18)63141-9

	Enhancing ethylene selectivity in MTO reaction by incorporating metal species in the cavity of SAPO-34 catalysts
	Guo, Xinwen 5; Liu, Zhongmin 3; Zhong, Jiawei 2,3,5; Han, Jingfeng 3; Wei, Yingxu 3; Xu, Shutao 3; Sun, Tantan 3; Song, Chunshan 1,4,5
刊名	CHINESE JOURNAL OF CATALYSIS
	2018-11-01
卷号	39 期号:11 页码:1821-1831
关键词	Methanol to olefin (MTO) Product selectivity Metal modification Diffusion hindrance Core-shell like
ISSN号	0253-9837
DOI	10.1016/S1872-2067(18)63141-9
通讯作者	Wei, Yingxu(weiyx@dicp.ac.cn) ; Song, Chunshan(csong@psu.edu) ; Liu, Zhongmin(liuzm@dicp.ac.cn)
英文摘要	The SAPO-34 catalysts were modified with metal cations by different processes (conventional ion exchange (CIE), template-assisted ion incorporation (TII) and alcoholic ion exchange (AIE)), systematically characterized by XRD, XRF, N-2 adsorption-desorption, UV-VIS, EPR, SEM, EDX, XPS, NH3-TPD, H-1 NMR and IGA, and applied in MTO reaction. The metal cations incorporation introduces extra diffusion hindrance by metallic species located in the cavity of SAPO-34. In particular, the Zn cations-modified SAPO-34 catalysts exhibit core-shell like structure, with Si-rich and Zn-rich sublayer near the external surface, which favors the coke deposition at the beginning of MTO reaction, exerts marked impact on the diffusion of the generated products with relatively large molecular size (e.g. propylene), and significantly increases the selectivity to ethylene and the ratio of ethylene to propene in the MTO reaction. (C) 2018, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[21603223] ; National Natural Science Foundation of China[91745109] ; National Natural Science Foundation of China[91545104] ; National Natural Science Foundation of China[21473182] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2014165] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-JSC024]
WOS关键词	TO-OLEFINS CONVERSION ; ACTIVE CU SITES ; MOLECULAR-SIEVES ; HZSM-5 CATALYSTS ; LIGHT OLEFINS ; METHANOL ; PERFORMANCE ; ZN ; ZEOLITE ; CU/SAPO-34
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000447958500012
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166872]
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; Song, Chunshan
作者单位	1.Penn State Univ, EMS Energy Inst, Dept Energy & Mineral Engn, University Pk, PA 16802 USA 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, iChEM Collaborat Innovat Ctr Chem Energy Mat,Dali, State Energy Low Carbon Catalysis & Engn R&D Ctr, Natl Engn Lab Methanol Olefins,Dalian Natl Lab Cl, Dalian 116023, Liaoning, Peoples R China 4.Penn State Univ, EMS Energy Inst, Dept Chem Engn, University Pk, PA 16802 USA 5.Dalian Univ Technol, PSU DUT Joint Ctr Energy Res, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xinwen,Liu, Zhongmin,Zhong, Jiawei,et al. Enhancing ethylene selectivity in MTO reaction by incorporating metal species in the cavity of SAPO-34 catalysts[J]. CHINESE JOURNAL OF CATALYSIS,2018,39(11):1821-1831.
APA	Guo, Xinwen.,Liu, Zhongmin.,Zhong, Jiawei.,Han, Jingfeng.,Wei, Yingxu.,...&Song, Chunshan.(2018).Enhancing ethylene selectivity in MTO reaction by incorporating metal species in the cavity of SAPO-34 catalysts.CHINESE JOURNAL OF CATALYSIS,39(11),1821-1831.
MLA	Guo, Xinwen,et al."Enhancing ethylene selectivity in MTO reaction by incorporating metal species in the cavity of SAPO-34 catalysts".CHINESE JOURNAL OF CATALYSIS 39.11(2018):1821-1831.