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题名: Liquid-phase hydrodechlorination of chlorinated benzenes over active carbon supported nickel catalysts under mild conditions
作者: Wu, WH;  Xu, H
刊名: CATALYSIS COMMUNICATIONS
发表日期: 2004-10-01
DOI: 10.1016/j.catcom.2004.07.013
卷: 5, 期:10, 页:591-595
收录类别: SCI ;  CCR
文章类型: Article
项目归属: 204
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: Liquid phase hydrodechlorination of chlorinated benzenes was studied over Ni/active carbon (Ni/AC), Ni/gamma-Al2O3, Ni/SiO2 and Raney Ni. The complete dechlorination of chlorobenzene (ClBz) was realized at 333-343 K on Ni/AC under hydrogen atmosphere of 1.0 MPa in the presence of alkaline hydroxide. Dichloro- and trichlorobenzenes were also hydrodechlorinated with 50-95% yields of benzene under the similar conditions, as above. The reaction follows zero-order to ClBz concentration and 1.9 order to hydrogen pressure. The reaction does not proceed in the absence of alkaline hydroxide, suggesting the complete coverage of active nickel surface with produced chlorine and the removal of the chlorine ion with hydroxide ion as a rate-limiting step. The active catalysts were characterized by H-2 chemisorption and transmission electron microscopy techniques. The apparent activity strongly depends on the active area of nickel on catalyst surface. (C) 2004 Published by Elsevier B.V.
关键词[WOS]: NOBLE-METAL CATALYSTS ;  CHLOROBENZENE ;  HYDRODEHALOGENATION ;  PALLADIUM ;  1,2,4-TRICHLOROBENZENE ;  DECHLORINATION ;  AROMATICS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000224400000006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/82107
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:
Wu, WH,Xu, H. Liquid-phase hydrodechlorination of chlorinated benzenes over active carbon supported nickel catalysts under mild conditions[J]. CATALYSIS COMMUNICATIONS,2004,5(10):591-595.
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