The influence of intimacy on the 'iterative reactions' during OX-ZEO process for aromatic production

doi:10.1016/j.jechem.2018.11.003

	The influence of intimacy on the 'iterative reactions' during OX-ZEO process for aromatic production
	Yang, Xiaoli 2,3; Sun, Ting 1; Ma, Junguo 2; Su, Xiong 2; Wang, Ruifeng 2; Zhang, Yaru 2,3; Duan, Hongmin 2; Huang, Yanqiang 2; Zhang, Tao 2,3
刊名	JOURNAL OF ENERGY CHEMISTRY
	2019-08-01
卷号	35 页码:60-65
关键词	OX-ZEO process Intimacy Iterative reactions Reaction aero-environment Diffusion
ISSN号	2095-4956
DOI	10.1016/j.jechem.2018.11.003
通讯作者	Huang, Yanqiang(yqhuang@dicp.ac.cn)
英文摘要	The oxide-zeolite process provides a promising way for one-step production of aromatics from syngas, whereas the reasons for the dramatic effect of intimacy between oxide and zeolite in the composite catalyst on the product selectivity are still unclear. In order to explore the optimal intimacy and the essential influence factors, ZnCrOx combined with ZSM-5 are employed to prepare the composite catalysts with different distances between the two components by changing the mixing methods. An aromatic selectivity of 74% (with CO conversion to be 16%) is achieved by the composite catalyst when the intimacy is in the range of nanometer. A so-called 'iterative reactions' mechanism of intermediates over oxides is then proposed and studied: the intermediate chemical can undergo a hydrogenation reaction on oxide. So the shorter the intermediates stay on oxide, the more of chance for C - C coupling takes place on zeolite to form aromatics. Moreover, the aero-environments of reaction is found to impact on the extent of iterative reaction as well. Therefore, when the intimacy between the two components changes, the extent of iterative reactions vary, resulting in alteration of product distribution. This work provides new insight in understanding the mechanisms during the complex process of OX-ZEO composite catalysis and sheds light to the design of a high-yield catalyst for synthetization of aromatics from syngas. (C) 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
资助项目	National Key R&D Program of China[2016YFA0202804] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB17020400] ; National Natural Science Foundation of China[21506204] ; National Natural Science Foundation of China[21476226] ; Dalian Science Foundation for Distinguished Young Scholars[2016RJ04] ; Youth Innovation Promotion Association CAS
WOS关键词	DIRECT CONVERSION ; BIFUNCTIONAL CATALYSTS ; SELECTIVE CONVERSION ; ISOBUTANOL SYNTHESIS ; LOWER OLEFINS ; SYNTHESIS GAS ; LIGHT-HYDROCARBONS ; SYNGAS ; METHANOL ; CO2
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000473220100010
资助机构	National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Dalian Science Foundation for Distinguished Young Scholars ; Dalian Science Foundation for Distinguished Young Scholars ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Dalian Science Foundation for Distinguished Young Scholars ; Dalian Science Foundation for Distinguished Young Scholars ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Dalian Science Foundation for Distinguished Young Scholars ; Dalian Science Foundation for Distinguished Young Scholars ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Dalian Science Foundation for Distinguished Young Scholars ; Dalian Science Foundation for Distinguished Young Scholars ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/175316]
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	Huang, Yanqiang
作者单位	1.Sichuan Normal Univ, Coll Chem & Mat Sci, Chengdu 610068, Sichuan, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xiaoli,Sun, Ting,Ma, Junguo,et al. The influence of intimacy on the 'iterative reactions' during OX-ZEO process for aromatic production[J]. JOURNAL OF ENERGY CHEMISTRY,2019,35:60-65.
APA	Yang, Xiaoli.,Sun, Ting.,Ma, Junguo.,Su, Xiong.,Wang, Ruifeng.,...&Zhang, Tao.(2019).The influence of intimacy on the 'iterative reactions' during OX-ZEO process for aromatic production.JOURNAL OF ENERGY CHEMISTRY,35,60-65.
MLA	Yang, Xiaoli,et al."The influence of intimacy on the 'iterative reactions' during OX-ZEO process for aromatic production".JOURNAL OF ENERGY CHEMISTRY 35(2019):60-65.