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题名: Methane aromatization in the absence of an added oxidant and the bench scale reaction test
作者: Lu, YA;  Xu, ZS;  Tian, ZJ;  Zhang, T;  Lin, LW
关键词: methane aromatization ;  bench scale test ;  steam treatment ;  activation procedure ;  Mo2C
刊名: CATALYSIS LETTERS
发表日期: 1999
卷: 62, 期:2-4, 页:215-220
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: A bench scale reaction test for methane aromatization in the absence of an added oxidant was performed and its reaction result evaluated based on the carbon balance of the system. The result was compared with those obtained from the micro-reaction test to ensure the accuracy of the internal standard analyzing method employed in this paper. The catalytic performances of modified Mo/HZSM-5 catalysts were examined. It was found that pre-treatment by steam on HZSM-5 weakened the serious deposition of coke, and pre-impregnation of n-ethyl silicate on HZSM-5 could improve the conversion of CH4, but had little effect on coke formation. A low temperature activation procedure including pre-reduction of the catalyst with methane prevents the zeolite lattice from being seriously destroyed by high valence state Mo species when the Mo loading is high. It was suggested that Mo2C species detected by XRD spectra was the active phase for CH4 aromatization.
关键词[WOS]: MO/HZSM-5 CATALYSTS ;  ZEOLITE CATALYSTS ;  COKE FORMATION ;  BENZENE ;  DEHYDROGENATION ;  CONVERSION ;  HZSM-5 ;  OXYGEN ;  ZSM-5 ;  OLIGOMERIZATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000083512000021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/85223
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, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Nat Gas Utilizat & Appl Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Lu, YA,Xu, ZS,Tian, ZJ,et al. Methane aromatization in the absence of an added oxidant and the bench scale reaction test[J]. CATALYSIS LETTERS,1999,62(2-4):215-220.
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