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题名: Ultra-deep desulfurization of diesel by selective oxidation with [C18H37N(CH3)(3)](4)[H2NaPW10O36] catalyst assembled in emulsion droplets
作者: Lu, HY;  Gao, JB;  Jiang, ZX;  Jing, F;  Yang, YX;  Wang, G;  Li, C
关键词: ultra-deep desulfurization ;  catalytic oxidation ;  emulsion catalysis ;  [C18H37N(CH3)(3)](4)[H2NaPW10O36] ;  diesel ;  benzothiophene (BT) ;  4,6-dimethyldibenzothiophene (4,6-DMDBT) ;  extraction
刊名: JOURNAL OF CATALYSIS
发表日期: 2006-04-25
DOI: 10.1016/j.jcat.2006.01.025
卷: 239, 期:2, 页:369-375
收录类别: SCI
文章类型: Article
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: The oxidation of sulfur-containing compounds (benzothiophene, dibenzothiophene, and their derivatives) in diesel was conducted in emulsion oxidative system (water in oil [W/O]) composed of diesel. 30 wt% hydrogen peroxide, and ail amphiphilic catalyst [C18H37N(CH3)(3)](4)[H2NaPW10O36] under mild conditions. The amphiphilic catalyst in the W/O emulsion system exhibits very high catalytic activity such that all sulfur-containing compounds in either model or actual diesel can be selectively oxidized into their corresponding sulfones using hydrogen peroxide (O/S <= 3) as an oxidant. The catalytic oxidation reactivity of sulfur-containing compounds was found to be in the following order: benzothiophene < 5-methylbenzothiophene < dibenzothiophene < 4,6-dimethyldibenzothiophene. Although benzothiophene is relatively difficult to oxidize, it can be efficiently oxidized in the emulsion system. The sulfones can be readily separated from diesel by an extractant. The sulfur level of a prehydrotreated diesel can be lowered from 500 to 0.1 ppm after oxidation and then extraction, whereas the sulfur level of a straight-run diesel can be decreased from 6000 to 30 ppm after oxidation and extraction. (c) 2006 Elsevier Inc. All rights reserved.
关键词[WOS]: HYDROGEN-PEROXIDE ;  CHEMICAL OXIDATION ;  EPOXIDATION ;  FUEL ;  OILS ;  DIBENZOTHIOPHENE ;  ADSORPTION ;  EXTRACTION ;  OLEFIN
语种: 英语
WOS记录号: WOS:000236890200014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140005
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:
Lu, HY,Gao, JB,Jiang, ZX,et al. Ultra-deep desulfurization of diesel by selective oxidation with [C18H37N(CH3)(3)](4)[H2NaPW10O36] catalyst assembled in emulsion droplets[J]. JOURNAL OF CATALYSIS,2006,239(2):369-375.
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