Alkali-treatment of template-containing MCM-22 zeolite and its application in alkylation and transalkylation reactions

	Alkali-treatment of template-containing MCM-22 zeolite and its application in alkylation and transalkylation reactions
	Liu, Kefeng 1,2; Xie, Sujuan 1; Wei, Huijuan 1,2; Li, Xiujie 1; Liu, Shenglin 1; Xu, Longya 1
刊名	applied catalysis a-general
	2013-11-05
卷号	468 页码:288-295
关键词	MCM-22 zeolite Alkali-treatment Benzene Alkylation Transalkylation
英文摘要	the effects of alkali-treatment on the compositions, acidities, texture properties and pore structures of template-containing mcm-22 zeolite were studied by py-ir, n-2 adsorption-desorption, o-xylene adsorption, xrd and si-29 nmr. when template-containing mcm-22 zeolite was alkali-treated, desilication mainly occurred in the al-poor regions, which broke the crystal sheets into smaller ones. the alkali-treatment process under the moderate conditions had little influence on the microporous properties and crystal structures of mcm-22 zeolite, but improved the diffusion conditions for aromatics mainly by reducing the crystal size. with the preserved framework al species, the alkali-treated template-containing mcm-22 samples had higher ratio of bronsted to lewis acid sites, and exhibited improved catalytic performances in alkylation and transalkylation processes. (c) 2013 elsevier b.v. all rights reserved.
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
关键词[WOS]	liquid-phase alkylation ; mesoporosity development ; zsm-5 zeolites ; pore systems ; catalytic performances ; mfi zeolites ; n-butane ; p-xylene ; desilication ; benzene
收录类别	SCI
语种	英语
WOS记录号	WOS:000327804200033
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/137501]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Kefeng,Xie, Sujuan,Wei, Huijuan,et al. Alkali-treatment of template-containing MCM-22 zeolite and its application in alkylation and transalkylation reactions[J]. applied catalysis a-general,2013,468:288-295.
APA	Liu, Kefeng,Xie, Sujuan,Wei, Huijuan,Li, Xiujie,Liu, Shenglin,&Xu, Longya.(2013).Alkali-treatment of template-containing MCM-22 zeolite and its application in alkylation and transalkylation reactions.applied catalysis a-general,468,288-295.
MLA	Liu, Kefeng,et al."Alkali-treatment of template-containing MCM-22 zeolite and its application in alkylation and transalkylation reactions".applied catalysis a-general 468(2013):288-295.