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学科主题: 物理化学
题名: Catalytic oxidation of thiophene and its derivatives via dual activation for ultra-deep desulfurization of fuels
作者: Zhang, Boyu1, 2;  Jiang, Zongxuan1;  Li, Jun1;  Zhang, Yongna1, 2;  Lin, Feng1, 2;  Liu, Yan1;  Li, Can1
通讯作者: 刘龑 ;  李灿
关键词: Thiophene ;  Dual activation ;  Hydrogen bonding ;  Oxidative desulfurization (ODS)
刊名: JOURNAL OF CATALYSIS
发表日期: 2012-03-01
DOI: 10.1016/j.jcat.2011.11.003
卷: 287, 页:5-12
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 503
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: A catalyst system composed of tungstate and Bronsted acidic ionic liquids (BAILs) was found to be highly active for the oxidative desulfurization (ODS) removal of thiophene, benzothiophene (BT), and their derivatives from model oil using 30 wt.% H2O2 as the oxidant. Five BAILs, [Hnmp]BF4, [Hmim]BF4, [Hnmp]HSO4, [Hmim]HSO4, and [Hnmp][CH3SO3](nmp = N-methyl-pyrrolidonium, mim = N-methylimidazolium), and various commercial tungstate compounds were investigated. High activity was obtained for the combination of ammonium tungstate and BAILs [Hnmp]BF4. In this catalytic reaction, sulfur content of model oil containing BT could be decreased from 700 ng mu L-1 to less than 1 ng mu L-1. Turnover frequency (TOF) for BT oxidation is higher than 194 x 10(-3) s(-1) that of in non-BAILs [Bmim]BF4 is less than 11 x 10(-3) s(-1). Noteworthily, the ODS of thiophene, which has been regarded as difficult task, can be also achieved up to 99% conversion with a TOF of 7 x 10(-3) s(-1). The FT-IR, H-1 NMR and electrochemical measurements evidences indicate that the strong hydrogen bonding between the sulfur-containing compounds and [Hnmp]BF4 and the oxidative function of the tungstate synergistically activate the reactants and result in the excellent catalytic performance. (C) 2011 Elsevier Inc. All rights reserved.
关键词[WOS]: IONIC LIQUIDS ;  DIESEL FUEL ;  ROOM-TEMPERATURE ;  ACID ;  ALCOHOLS ;  HYDROGENATION ;  ADSORPTION ;  H2O2
语种: 英语
WOS记录号: WOS:000302046200002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117820
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
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Zhang, Boyu,Jiang, Zongxuan,Li, Jun,et al. Catalytic oxidation of thiophene and its derivatives via dual activation for ultra-deep desulfurization of fuels[J]. JOURNAL OF CATALYSIS,2012,287:5-12.
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