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题名: Combined single-pass conversion of methane via oxidative coupling and dehydroaromatization
作者: Li, YG;  Su, LL;  Wang, HX;  Liu, HM;  Shen, WJ;  Bao, XH;  Xu, YD
关键词: single-pass ;  methane ;  oxidative coupling ;  dehydroaromatization ;  aromatics
刊名: CATALYSIS LETTERS
发表日期: 2003-09-01
卷: 89, 期:3-4, 页:275-279
收录类别: SCI
文章类型: Article
部门归属: 501
项目归属: 501
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 new reaction mode, i.e., the combined single-pass conversion of methane via oxidative coupling (OCM) over mixed metal oxide (SLC) catalysts and dehydroaromatization (MDA) over Mo/HZSM-5 catalysts, is reported. With the assistance of an OCM reaction over SLC catalysts in the top layer of the reactor, the deactivation resistance of Mo/HZSM-5 catalysts is remarkably enhanced. Under the selected reaction conditions, the CH(4) conversion decreased from similar to18 to similar to1% and the aromatics yield decreased from 12.8 to 0.1%, respectively, after running the reaction for 960 min on both 6Mo/HZSM-5 and SLC-6Mo/HZSM-5 catalyst system without O(2) in the feed. On the other hand, for the SLC-6Mo/HZSM-5 catalyst system with O(2) in the feed, the deactivation was improved greatly, and after 960 min onstream the CH(4) conversion and aromatics yield were still as high as 12.0 and 8.0%, respectively. The promotion effect mainly appears to be associated with in situ formation of CO(2) in the OCM layer, which reacts with coke via the reverse Boudouard reaction.
关键词[WOS]: NONOXIDATIVE CONDITIONS ;  DEHYDRO-AROMATIZATION ;  MO/HZSM-5 CATALYSTS ;  ZEOLITE CATALYSTS ;  BENZENE ;  CO2 ;  DEHYDROGENATION ;  NAPHTHALENE ;  OXYGEN ;  MO
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000185303100017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/82857
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

Recommended Citation:
Li, YG,Su, LL,Wang, HX,et al. Combined single-pass conversion of methane via oxidative coupling and dehydroaromatization[J]. CATALYSIS LETTERS,2003,89(3-4):275-279.
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