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题名: Effects of NaOH solution treatment on the catalytic performances of MCM-49 in liquid alkylation of benzene with ethylene
作者: Liu, Kefeng2;  Xie, Sujuan;  Xu, Guoliang;  Li, Yuning;  Liu, Shenglin;  Xu, Longya1
关键词: MCM-49 ;  Alkali-treatment ;  Benzene ;  Ethylene ;  Liquid alkylation
刊名: APPLIED CATALYSIS A-GENERAL
发表日期: 2010-07-31
DOI: 10.1016/j.apcata.2010.05.029
卷: 383, 期:1-2, 页:102-111
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Life Sciences & Biomedicine
类目[WOS]: Chemistry, Physical ;  Environmental Sciences
研究领域[WOS]: Chemistry ;  Environmental Sciences & Ecology
英文摘要: MCM-49 zeolite was alkali-treated with NaOH solutions under mild and severe conditions. The samples before and after alkali-treatment were both used as catalysts in liquid alkylation reaction of benzene with ethylene. XRD, XRF, TPD, TPO, IR, SEM, (29)Si NMR, N(2) adsorption and desorption techniques were employed to characterize the samples. The mildly alkali-treated samples exhibited higher catalytic stability than the parent HMCM-49, as the amorphous particles on the MCM-49 crystal surface were cleaned and the diffusion of the reactant and product was enhanced. The severe alkali-treatment condition resulted in the selective extraction of silicon atoms and the introduction of extra mesopores. The catalytic stability of the catalysts that had been severely alkali-treated was not as good as that of mildly treated ones, but was still better than that of the parent HMCM-49 catalyst if the alkali-treatment conditions were not too severe. (C) 2010 Elsevier B.V. All rights reserved.
关键词[WOS]: DIFFERENT ALUMINUM CONTENT ;  HIGH-SILICA ZEOLITES ;  PHASE ALKYLATION ;  ZSM-5 ZEOLITE ;  MFI ZEOLITES ;  METHANE DEHYDROAROMATIZATION ;  MESOPOROSITY DEVELOPMENT ;  ALKALINE-SOLUTIONS ;  DESILICATION ;  ACID
语种: 英语
WOS记录号: WOS:000280624900013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141768
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, Grp 804, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Liu, Kefeng,Xie, Sujuan,Xu, Guoliang,et al. Effects of NaOH solution treatment on the catalytic performances of MCM-49 in liquid alkylation of benzene with ethylene[J]. APPLIED CATALYSIS A-GENERAL,2010,383(1-2):102-111.
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