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题名: Structure of Mo/HZSM-5 Catalysts and Their Reactivities of Methane Dehydro-oligomerization under Non-oxidizing Conditions
作者: Chen Laiyuan1;  Xu Zhusheng1;  Zhang Tao1;  Li Xiusheng1;  Lin Liwu1
关键词: Methane ;  Dehydro-oligomerization ;  Mo/HZSM-5 catalyst
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 1995
DOI: 10.3866/PKU.WHXB19950707
卷: 11, 期:7, 页:601-606
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 structures of Mo/HZSM-5 catalysts with different molybdenum loadings were characterized and the reaction performances of methane dehydro-oligomerization over these catalysts were investigated. It was found that the BET surface areas, micropore volumes as well as the surface acidities of the catalysts decreased with the increasing of molybdenum loading. When the molybdenum loading was greater than 5%, molybdenum would impose significant influence on the crystalline structure of HZSM-5 zeolite and MoO3 phase would appear. The optimum molybdenum content for the conversion of methane to benzene and ethylene was about 2%. The synergisitc effect between molybdenum oxygen species and the acidic sites of HZSM-5 plays an important role in the catalysis conversion of methane as both MoO3 and HZSM-5 alone showed little reactivity. The molybdenum species were reduced and the acidic sites were covered by carbonaceous substances after the deactivation of catalysts. The carbon deposition seems to be the predominant reason for the catalyst deactivation because the catalyst activity could be rejuvenated after burning off coke.
语种: 英语
WOS记录号: WOS:000207590600007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141395
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, Dalian 116023, Peoples R China

Recommended Citation:
Chen Laiyuan,Xu Zhusheng,Zhang Tao,et al. Structure of Mo/HZSM-5 Catalysts and Their Reactivities of Methane Dehydro-oligomerization under Non-oxidizing Conditions[J]. ACTA PHYSICO-CHIMICA SINICA,1995,11(7):601-606.
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