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

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. super(1)H NMR. super(13)CNMR, super(31)P NMR, and ESR have been discussed for the molecular confirmation of syn...

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Published inFuel processing technology Vol. 123; pp. 1 - 10
Main Authors DHARASKAR, Swapnil A, WASEWAR, Kailas L, VARMA, Mahesh N, SHENDE, Diwakar Z, KIRAN KUMAR TADI, CHANG KYOO YOO
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier 01.07.2014
Subjects
Applied sciences
Crude oil, natural gas and petroleum products
Desulfurizing
Dibenzothiophene
Energy
Exact sciences and technology
Fuels
Ionic liquids
Liquid fuels
Nuclear magnetic resonance
Recycling
Solubility
Desulfurization
PPIL
Organic phosphinate
Fuel desulfurization
Solvent extraction
Phosphorus Organic compounds
Quaternary phosphonium compound
Ionic liquid
Characterization
Liquid fuel
Ultrasound assisted extraction
Extraction
Recycling
Chemical synthesis
Application
Ultrasound
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Summary: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. super(1)H NMR. super(13)CNMR, super(31)P 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 mm 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.
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ISSN:0378-3820
1873-7188
DOI:10.1016/j.fuproc.2014.02.001