DICP OpenIR
学科主题物理化学
Desulfurization by oxidation combined with extraction using acidic room-temperature ionic liquids
Chi Yansheng1,3; Li Changping1,2; Jiao Qingzhu3; Liu Qingshan1; Yan Peifang1; Liu Xiumei1; Welz-Biermann, Urs1; Li ZP(李长平); UrsWelz-Biermann
刊名GREEN CHEMISTRY
2011
ISSN待补充
DOI10.1039/c0gc00745e
13期:5页:1224-1229
收录类别SCI
文章类型Article
部门归属2
项目归属207
产权排名1,1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]OIL REFINERY STREAMS ; DEEP DESULFURIZATION ; CHEMICAL OXIDATION ; FUELS ; EFFICIENCY ; SOLVENT ; DESIGN ; SULFUR ; DIESEL
英文摘要Desulfurization by oxidation combined with extraction using acidic room-temperature ionic liquids; Room-temperature ionic liquids (ILs) are commonly used for desulfurization by extraction for their unique solvent characteristics. In this study, 1-ethyl-3-(4-sulfobutyl)imidazolium bis(trifluoromethanesulfonyl)imide ([EimC(4)SO(3)H]NTf2) was used as catalyst and extractant for desulfurization of DBT in n-octane. The results show that dibenzothiophene (DBT) could be removed from the oil phase effectively by this process, and that the sulfur content in a model oil could be decreased from 1600 ppm to less than 20 ppm. The extraction efficiency of the IL was greatly influenced by the structure of the anions and cations. The order of extraction capability of ILs was [EimC(4)SO(3)H]NTf2 > [EimC(4)SO(3)H]HSO4 > [C4Py]NTf2 > [Bmim]NTf2 > [Bmim]PF6. Experiments on the recycling and reuse of the room-temperature IL were also performed, and we found that [EimC(4)SO(3)H]NTf2 could be recycled 5 times without significant decrease in the desulfurization activity. The extraction mechanism was also probed in detail, and we found that DBT was oxidized to its corresponding sulfone by H2O2 and NaClO, which was then extracted by the IL phase. However, different extraction mechanisms are at work with different oxidants.
语种英语
WOS记录号WOS:000290227800028
引用统计
被引频次:61[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/115863
专题中国科学院大连化学物理研究所
通讯作者Li ZP(李长平); UrsWelz-Biermann
作者单位1.Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian, Peoples R China
2.Dalian Univ, Coll Chem Engn & Environm, Dalian, Peoples R China
3.Liaoning Normal Univ, Coll Chem & Chem Engn, Dalian, Peoples R China
推荐引用方式
GB/T 7714
Chi Yansheng,Li Changping,Jiao Qingzhu,et al. Desulfurization by oxidation combined with extraction using acidic room-temperature ionic liquids[J]. GREEN CHEMISTRY,2011,13(5):1224-1229.
APA Chi Yansheng.,Li Changping.,Jiao Qingzhu.,Liu Qingshan.,Yan Peifang.,...&UrsWelz-Biermann.(2011).Desulfurization by oxidation combined with extraction using acidic room-temperature ionic liquids.GREEN CHEMISTRY,13(5),1224-1229.
MLA Chi Yansheng,et al."Desulfurization by oxidation combined with extraction using acidic room-temperature ionic liquids".GREEN CHEMISTRY 13.5(2011):1224-1229.
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