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题名: The effect of acidity on olefin aromatization over potassium modified ZSM-5 catalysts
作者: Song, YQ;  Zhu, XX;  Xie, SJ;  Wang, QX;  Xu, LY
关键词: aromatization ;  zeolite ZSM-5 ;  potassium ;  acid strength
刊名: CATALYSIS LETTERS
发表日期: 2004-08-01
卷: 97, 期:1-2, 页:31-36
收录类别: SCI
文章类型: Article
项目归属: 804
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: The transformation of olefin to aromatics over ZSM-5 catalysts with different K-loadings has been investigated both in a continuous flow fixed-bed reactor and in a pulse microreactor. Investigation of variation of olefin aromatization activity with K-loadings shows that strong acid sites are indispensable for the converting of olefin to aromatics. As intermediates of olefin aromatization process, butadiene and cyclopentene not only show much higher aromatization activity than mono-olefins, but also can be transformed into aromatics over relatively weak acid sites of K/ZSM-5. A proposal is put forward, stating that among all the steps experienced in olefins aromatization, the formation of diene or cycloolfin from mono-olefins through hydrogen transfer is the key step and can be catalyzed by strong acid sites.
关键词[WOS]: HYDROCARBONS ;  CONVERSION ;  AROMATICS ;  ZEOLITES ;  ALCOHOLS ;  H-ZSM-5
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000222502600005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/82333
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:
Song, YQ,Zhu, XX,Xie, SJ,et al. The effect of acidity on olefin aromatization over potassium modified ZSM-5 catalysts[J]. CATALYSIS LETTERS,2004,97(1-2):31-36.
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