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题名: Carbonaceous deposition on Mo/HMCM-22 catalysts for methane aromatization: A TP technique investigation
作者: Ma, D;  Wang, DZ;  Su, LL;  Shu, YY;  Xu, Y;  Bao, XH
刊名: JOURNAL OF CATALYSIS
发表日期: 2002-06-10
DOI: 10.1006/jcat.2002.3540
卷: 208, 期:2, 页:260-269
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: TPO (temperature-programmed oxidation), TPSR (temperature-programmed surface reaction), and TPH (temperature-programmed hydrogenation) techniques are used to investigate carbonaceous deposition on Mo/HMCM-22 catalysts for methane aromatization. Different carbonaceous species and their amounts are distinguished. There are at least three kinds of cokes: carbidic carbon in molybdenum carbide, molybdenum-associated coke, and aromatic-type cokes on acid sites. It is suggested that the aromatic-type cokes on Bronsted acid sites are responsible for catalyst deactivation. Catalytic activity can be restored after temperature-programmed hydrogenation. (C) 2002 Elsevier Science (USA).
关键词[WOS]: TEMPERATURE-PROGRAMMED OXIDATION ;  MO-BASED CATALYSTS ;  DEHYDRO-AROMATIZATION ;  MO/HZSM-5 CATALYSTS ;  ZEOLITE CATALYST ;  METAL-CATALYSTS ;  HZSM-5 ZEOLITE ;  BENZENE ;  CONVERSION ;  MCM-22
语种: 英语
WOS记录号: WOS:000176073900002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139164
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:
Ma, D,Wang, DZ,Su, LL,et al. Carbonaceous deposition on Mo/HMCM-22 catalysts for methane aromatization: A TP technique investigation[J]. JOURNAL OF CATALYSIS,2002,208(2):260-269.
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