Synthesis, characterization, and application of novel trihexyl tetradecyl phosphonium bis (2,4,4-trimethylpentyl) phosphinate for extractive desulfurization of liquid fuel

被引：84
作者：
Dharaskar, Swapnil A. [1 ]
Wasewar, Kailas L. [1 ,3 ]
Varma, Mahesh N. [1 ]
Shende, Diwakar Z. [1 ]
Tadi, Kiran Kumar [2 ]
Yoo, Chang Kyoo [3 ]
机构：
[1] Visvesvaraya Natl Inst Technol, Dept Chem Engn, Adv Separat & Analyt Lab, Nagpur 440010, Maharashtra, India
[2] Visvesvaraya Natl Inst Technol, Dept Chem, Nagpur 440010, Maharashtra, India
[3] Kyung Hee Univ, Coll Engn, Dept Environm Sci & Engn, Environm Management & Syst Engn Lab, Yongin 446701, Gyeonggi Do, South Korea
来源：
FUEL PROCESSING TECHNOLOGY | 2014年 / 123卷
关键词：
Ionic liquid; PPIL; Desulfurization; Liquid fuel; Extraction; IONIC LIQUIDS; DEEP DESULFURIZATION; DIESEL FUEL; OXIDATIVE DESULFURIZATION; ASSISTED EXTRACTION; GASOLINE; CATALYST; DIBENZOTHIOPHENE; SOLVENTS; REMOVAL;
D O I：
10.1016/j.fuproc.2014.02.001
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In present paper experimental data on extractive desulfurization of liquid fuel using trihexyl tetradecyl phosphonium bis (2,4,4-trimethyl pentyl) phosphinate has been presented. The FTIR, H-1 NMR, C-13 NMR, P-31 NMR, and ESR have been discussed for the molecular confirmation of synthesized phosphonium based ionic liquid. Further, conductivity, solubility, and viscosity analyses of phosphonium ionic liquids were carried out. The effects of reaction time, reaction temperature, sulfur compounds, ultrasonication, and recycling of ionic liquid without regeneration on removal of dibenzothiophene from liquid fuel were also investigated. In extractive desulfurization process, the removal of dibenzothiophene in n-dodecane was 79.5% for mass ratio of 1:1 in 30 min at 30 degrees C under the mild reaction conditions. Phosphonium ionic liquids could be reused five times without a significant decrease in activity. Also, the desulfurization of real fuels, multistage extraction was examined. The data and results provided in present paper explore the significant insights of phosphonium based ionic liquids as novel extractant for extractive desulfurization of liquid fuels. (C) 2014 Elsevier B.V. All rights reserved.
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页码：1 / 10
页数：10
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