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学科主题: 物理化学
题名: Synthesis of LPG via DME from syngas in two-stage reaction system
作者: Ma, Xiangang1;  Ge, Qingjie1;  Ma, Junguo1;  Xu, Hengyong1
通讯作者: 葛庆杰
关键词: LPG synthesis ;  Two-stage ;  Syngas ;  DME ;  Coke burning
刊名: FUEL PROCESSING TECHNOLOGY
发表日期: 2013-05-01
DOI: 10.1016/j.fuproc.2013.01.002
卷: 109, 页:1-6
收录类别: SCI
文章类型: Article
部门归属: DNL19
项目归属: DNL1902
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering
英文摘要: Synthesis of liquefied petroleum gas (LPG) via dimethyl ether (DME) from syngas was carried out in a two-stage reaction system, where syngas was transformed to DME in the first stage over the Cu-Zn-Al/ZSM-5 catalyst and then to hydrocarbons in the second stage over the Pd-Y catalyst. CO conversion and LPG selectivity were dominated by the first and second stage, respectively. CO conversion could be kept at a high level through the gradual increase of reaction temperature of the first stage, although there was a slight deactivation for the Cu-Zn-Al/ZSM-5 catalyst. LPG selectivity in hydrocarbons was more than 75% due to the proper pore size of Y zeolite and the presence of hydrogen. Coke deposition on Y zeolite was the reason for the decrease of LPG selectivity, but fortunately the selectivity of LPG could be recovered to a great extent by coke burning. (c) 2013 Elsevier B.V. All rights reserved.
关键词[WOS]: LIQUEFIED PETROLEUM GAS ;  FISCHER-TROPSCH SYNTHESIS ;  HYBRID CATALYSTS ;  DIMETHYL ETHER ;  STEP SYNTHESIS ;  ZEOLITE ;  GASOLINE ;  REGENERATION ;  PERFORMANCE ;  ALKYLATION
语种: 英语
WOS记录号: WOS:000316425500001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117577
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, Peoples R China

Recommended Citation:
Ma, Xiangang,Ge, Qingjie,Ma, Junguo,et al. Synthesis of LPG via DME from syngas in two-stage reaction system[J]. FUEL PROCESSING TECHNOLOGY,2013,109:1-6.
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