Extractive desulfurization using piperidinium based ionic liquids with Lewis acids

Year 2021, Volume: 8 Issue: 4, 1057 - 1088, 30.11.2021

Assim A. Sabah

https://doi.org/10.18596/jotcsa.963930

Cited By: 1

Abstract

This work includes the preparation of ionic liquid 1,4-dimethylpiperidinium iodide [MMPip]I and its salts with ferric chloride as Lewis acid in different molar proportions [MMPip]I/nFeCl3 (n=1,2,3). The prepared compounds were diagnosed by spectroscopic and physical methods such as 1H-NMR, FT-IR, elemental analysis (CHN) and other techniques. The thermal stability of these compounds was studied to use in the extractive desulfurization process (EDS). The efficiency of these compounds in removing sulfur compounds from the petroleum model was examined using dibenzothiophene (DBT) with a concentration of 1000 ppm dissolved in the solvent of normal hexane. The results showed that the compounds used had an acceptable efficiency of up to 30% despite using medium amounts of the extracted agent relative to the oil model; these compounds have a promising future in extractive sulfur removal processes.

Keywords

Piperidine ionic liquids, Desulfurization, Thermal study, Lewis acid

Supporting Institution

Mosul University

Project Number

Non

Thanks

The author is grateful to the University of Mosul for their support of scientific research and the Department of Chemistry at the University of Liverpool for helping to carry out some of the required research measurements.

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