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学科主题: 物理化学
题名: Co-feeding with DME: An effective way to enhance gasoline production via low temperature aromatization of LPG
作者: Zhu, Xiangxue1;  Wang, Yuzhong1;  Li, Xiujie1;  Li, Hongbing2;  Zeng, Peng3;  An, Jie1;  Chen, Fucun1;  Xie, Sujuan1;  Lan, Hongping4;  Wang, Dawei3;  Liu, Shenglin1;  Xu, Longya1
通讯作者: 朱向学 ;  徐龙伢
关键词: aromatization ;  gasoline ;  alkene ;  butene ;  dimethyl ether ;  co-feeding ;  ZSM-5
刊名: JOURNAL OF ENERGY CHEMISTRY
发表日期: 2013-09-01
卷: 22, 期:5, 页:755-760
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: DNL08
项目归属: DNL0804
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Energy & Fuels ;  Engineering, Chemical
资助者: 1,1
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering
英文摘要: The aromatization of light alkenes in liquefied petroleum gas (LPG) with and without dimethyl ether (DME) addition in the feed was investigated on a modified ZSM-5 catalyst. The results showed that under the given reaction conditions the selectivity of alkenes to high-octane gasoline blending components was markedly enhanced and the formation of propane and butanes was greatly suppressed with the addition of DME. It was also found that the distribution of C5+ components was changed a lot with DME addition into the LPG feed. The formation of branched hydrocarbons (mainly C-6-C-8 i-paraffin) and multi-methyl substituted aromatics, which are high octane number gasoline blending components, was promoted significantly, while the content of n-paraffins and olefins in C5+ components was decreased obviously, indicating that in addition to the oligomerization, cracking, hydrogen-transfer and dehydrogenation-cyclization of alkenes, the methylation of the formed aromatics and olefins intermediates also plays an important role in determining the product distribution due to the high reactivity of surface methoxy groups formed by DME. And this process, in combination with the syngas-to-methanol/DME technology, provides an alternative way to the production of high-octane gasoline from coal, natural gas or renewable raw materials.
关键词[WOS]: BUTENE AROMATIZATION ;  METHANOL ;  HYDROCARBONS ;  CONVERSION ;  STABILITY ;  CATALYST ;  BEHAVIOR ;  SAPO-34 ;  PROPENE ;  ETHENE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000325595700011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119445
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.Fushun Petrochem Co, CNPC, Fushun 113008, Liaoning, Peoples R China
3.Liaoning Branch Co, China Huanqiu Contracting & Engn Corp, Fushun 113006, Liaonin, Peoples R China
4.Guangxi Yuchai Petrochem CO LTD, Qingzhou 535000, Guangxi, Peoples R China

Recommended Citation:
Zhu, Xiangxue,Wang, Yuzhong,Li, Xiujie,et al. Co-feeding with DME: An effective way to enhance gasoline production via low temperature aromatization of LPG[J]. JOURNAL OF ENERGY CHEMISTRY,2013,22(5):755-760.
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