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题名: A comparative study of PdZSM-5, Pd beta, and PdY in hybrid catalysts for syngas to hydrocarbon conversion
作者: Wang, Chun1, 2;  Ma, Xiangang1;  Ge, Qingjie1;  Xu, Hengyong1
刊名: CATALYSIS SCIENCE & TECHNOLOGY
发表日期: 2015-03-01
DOI: 10.1039/c4cy01494d
卷: 5, 期:3, 页:1847-1853
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The catalytic conversion of syngas into hydrocarbons over hybrid catalysts consisting of a methanol synthesis catalyst and Pd modified zeolites (PdZSM-5, Pd beta, and PdY) was investigated. The results indicate that the intermediate dehydration step of DME in the syngas to hydrocarbon process mainly occurs on the Bronsted acid sites of the Pd zeolite. The large pores and cavities of Pd beta and PdY promote the formation of C4+ hydrocarbons, which are mainly gasoline-type branched hydrocarbons. Moreover, the large pores and cavities provide enough space for the formation of higher aromatics which are the precursor of coke. The blockage of micropores of the Pd zeolites by hydrocarbon-type coke results in the deactivation of the hybrid catalysts.
关键词[WOS]: FISCHER-TROPSCH SYNTHESIS ;  DIMETHYL ETHER ;  SELECTIVE SYNTHESIS ;  METHANOL SYNTHESIS ;  SYNTHESIS GAS ;  GASOLINE ;  DEACTIVATION ;  ZEOLITES ;  COKING ;  PERFORMANCE
语种: 英语
WOS记录号: WOS:000350685400053
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146076
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, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China

Recommended Citation:
Wang, Chun,Ma, Xiangang,Ge, Qingjie,et al. A comparative study of PdZSM-5, Pd beta, and PdY in hybrid catalysts for syngas to hydrocarbon conversion[J]. CATALYSIS SCIENCE & TECHNOLOGY,2015,5(3):1847-1853.
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