Journal of Solution Chemistry

, Volume 47, Issue 3, pp 468–483 | Cite as

Extractive Desulfurization of Liquid Fuel using Modified Pyrollidinium and Phosphonium Based Ionic Liquid Solvents

  • Omar U. Ahmed
  • Farouq S. Mjalli
  • Al-Wahaibi Talal
  • Yahya Al-Wahaibi
  • Inas M. Al Nashef
Article
  • 60 Downloads

Abstract

In the pursuit of better solvents for use in the extractive desulfurization (EDS) of liquid fuel, the pyrollidinium and phosphonium based ionic liquids (ILs) have been improved by combining them with selected molecular compound modifiers. The modifiers, which are imidazole, poly(ethylene) glycol (PEG 200) and sulfolane were selected to induce previously nonexistent mechanisms in the presence of refractory sulfur compounds. The addition of PEG 200 and sulfolane were observed to have a more positive impact on the performance of the ILs than the addition of imidazole under the same conditions. This provides further support for the idea that π–π interaction may not be the predominant interactions for the ILs that are the highly effective in EDS. Using the sulfolane modified tetrabutylphosphonium methanesulfonate [P4444][MeSO3], up to 81% dibenzothiophene (DBT) removal was recorded at a temperature of 30 °C and solvent-to-mass ratio of 1:1 and after a 30 min mixing time.

Keywords

Ionic liquid Thiophene Benzothiophene Diesel Phosphonium Pyrollidinium Hexadecane Sulfolane 

Notes

Acknowledgment

The authors appreciate the financial support of The Research Council and Sultan Qaboos University, Muscat Oman, under the Project RC/ENG/PCED/12/02.

Supplementary material

10953_2018_732_MOESM1_ESM.docx (2.6 mb)
Supplementary material 1 (DOCX 2638 kb)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Petroleum and Chemical Engineering DepartmentSultan Qaboos UniversityMuscatSultanate of Oman
  2. 2.Department of Chemical and Environmental EngineeringKhalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates

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