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题名: Selective dealumination of mordenite for enhancing its stability in dimethyl ether carbonylation
作者: Xue, Huifu1;  Huang, Xiumin1;  Zhan, Ensheng1;  Ma, Meng1;  Shen, Wenjie1
关键词: DME carbonylation ;  Mordenite ;  Selective-dealumination ;  Steam-treatment ;  Stability
刊名: CATALYSIS COMMUNICATIONS
发表日期: 2013-07-05
DOI: 10.1016/j.catcom.2013.03.033
卷: 37, 页:75-79
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: Selective dealumination of mordenite by high-temperature steam treatment improved its stability in dimethyl ether carbonylation. Most of the framework Al species in the 12-membered ring channels of mordenite was removed while those in the 8-membered ring channels were retained. On the resulting mordenite catalyst, the formation rate of methyl acetate was only slightly decreased and maintained at 1.71 mol (mol H+)(-1) h(-1) at 15 h. Temperature-programmed oxidation analyses on the used sample evidenced that the deposition of hard coke was effectively suppressed in the selectively dealuminated catalyst because of the reduced number of acidic sites in the 12-membered ring channels. (C) 2013 Elsevier B.V. All rights reserved.
关键词[WOS]: VAPOR-PHASE CARBONYLATION ;  SOLID ACID CATALYSTS ;  METHYL ACETATE ;  BRONSTED ACIDITY ;  H-MORDENITE ;  ACETIC-ACID ;  ZEOLITES ;  METHANOL ;  SITES ;  SPECIFICITY
语种: 英语
WOS记录号: WOS:000319645000017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137795
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:
Xue, Huifu,Huang, Xiumin,Zhan, Ensheng,et al. Selective dealumination of mordenite for enhancing its stability in dimethyl ether carbonylation[J]. CATALYSIS COMMUNICATIONS,2013,37:75-79.
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