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题名: Combined single-pass conversion of methane via oxidative coupling and dehydro-aromatization
作者: Li, YG;  Wu, TH;  Shen, WJ;  Bao, XH;  Xu, YD
通讯作者: 徐奕德
关键词: combined conversion of methane ;  oxidative coupling ;  dehydroaromatization ;  6Mo /HMCM-49
刊名: CATALYSIS LETTERS
发表日期: 2005-11-01
DOI: 10.1007/s10562-005-8008-y
卷: 105, 期:1-2, 页:77-82
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 501,502
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: A single-pass process with the combination of oxidative coupling (OCM) and dehydro-aromatization (MDA) for the direct conversion of methane is carried out. With the assistance of the OCM reaction over the SrO-La2O3/CaO catalyst loaded on top of the catalyst bed, the duration of the dehydro-aromatization reaction catalyzed by a 6Mo/HMCM-49 catalyst shows a significant improvement, and. the initial deactivation rate constant of the overall process revealed about 1.5 x 10(-6) s(-1). Up to 72 h on stream, the yield of aromatics was still maintained at 5.0% with a methane conversion of 9.6%, which is obviously higher than that reported for the conventional MDA process with single catalyst. Upon the TPR results, this wonderful enhancement would be attributed to an in-situ formation of CO2 and H2O through the OCM reaction, which serves as a scavenger for actively removing the coke formed during the MDA reaction via a reverse Boudouard reaction and the water gas reaction as well.
关键词[WOS]: MO/HZSM-5 CATALYSTS ;  NONOXIDATIVE CONDITIONS ;  ZEOLITE CATALYSTS ;  BENZENE ;  DEHYDROAROMATIZATION ;  DEHYDROCONDENSATION ;  NAPHTHALENE ;  CO2 ;  PERFORMANCE ;  PROMOTION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000232697100012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/93069
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.Jilin Univ, Dept Chem, Changchun 130023, Peoples R China

Recommended Citation:
Li, YG,Wu, TH,Shen, WJ,et al. Combined single-pass conversion of methane via oxidative coupling and dehydro-aromatization[J]. CATALYSIS LETTERS,2005,105(1-2):77-82.
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