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题名: Preparation of Mo2C/HZSM-5 and its catalytic performance for the conversion of n-butane into aromatics
作者: Yuan, S;  Hamid, SBDA;  Li, Y;  Ying, P;  Xin, Q;  Derouane, EG;  Li, C
关键词: n-C4H10 ;  Mo/HZSM-5 ;  molybdenum carbide ;  aromatisation
刊名: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
发表日期: 2002-06-17
卷: 184, 期:1-2, 页:257-266
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: The preparation of alpha-MoC1-x/HZSM-5 and beta-Mo2C/HZSM-5 from the carburisation of MoO3/HZSM-5 by n-C4H10/H-2 were investigated. It is found that alpha-MoC1-x/HZSM-5 can be produced from the carburisation of MoO3/HZSM-5 by n-C4H10/H-2 between 813 and 973K. The treatment of alpha-MoC1-x/RZSM-5 with H-2 above 873K leads to the production of beta-Mo2C/HZSM-5. The aromatisation of alpha-C4H10 was investigated using Mo2C/HZSM-5 as the catalyst. It shows that n-butane is mainly cracked on HZSM-5, while the production of aromatics is significantly promoted when Mo2C is loaded on HZSM-5. The optimal molybdenum loading is in the range of 3-6wt.% and alpha-MoC1-x/HZSM-5 has better aromatisation performance than beta-Mo2C/HZSM-5. On the other hand, when Mo2C is supported on HZSM-5, the activity and durability of Mo2C for the aromatisation of n-butane are greatly improved, the acidity of HZSM-5 is also helpful for the aromatisation performance of Mo2C/HZSM-5. The effect of temperature on the aromatisation of n-butane indicates that the acidity of HZSM-5 plays predominant role in the activation of n-butane at low reaction temperatures while both Mo2C and HZSM-5 contribute to the aromatisation of n-butane at high reaction temperatures. (C) 2002 Elsevier Science B.V. All rights reserved.
关键词[WOS]: MOLYBDENUM CARBIDE CATALYSTS ;  TRANSITION-METAL CARBIDES ;  ZEOLITE CATALYSTS ;  NONOXIDATIVE CONVERSION ;  UNSUPPORTED POWDERS ;  ZSM-5 ZEOLITES ;  METHANE ;  TRANSFORMATION ;  HYDROGENATION ;  HYDROCARBONS
语种: 英语
WOS记录号: WOS:000176634000030
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139213
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.Univ Liverpool, Leverhulme Ctr Innovat Catalysis, Dept Chem, Liverpool L69 7ZD, Merseyside, England

Recommended Citation:
Yuan, S,Hamid, SBDA,Li, Y,et al. Preparation of Mo2C/HZSM-5 and its catalytic performance for the conversion of n-butane into aromatics[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2002,184(1-2):257-266.
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