eprintid: 13447
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/34/47
datestamp: 2023-11-10 03:28:00
lastmod: 2023-11-10 03:28:00
status_changed: 2023-11-10 01:51:11
type: article
metadata_visibility: show
creators_name: Ullah, S.
creators_name: Bustam, M.A.
creators_name: Al-Sehemi, A.G.
creators_name: Assiri, M.A.
creators_name: Gonfa, G.
creators_name: Mukhtar, A.
creators_name: Ayoub, M.
creators_name: Ahmad, T.
title: Experimental investigations on the regeneration of desulfurized 1-butyl-3-methylimidazolium tetrachloroferrate BmimFeCl4 and 1-butyl-3-methylimidazolium thiocyanate BmimSCN ionic liquids: A raman spectroscopic study
ispublished: pub
keywords: Fourier transform infrared spectroscopy; Hexane; Ionic liquids; Raman spectroscopy; Spectroscopic analysis; Sulfur compounds; Sulfur determination; Thermogravimetric analysis, Cosolvents; Desulphurization; Dibenzothiophene; Dibenzothiophenes; Experimental investigations; Raman spectroscopic study; Regeneration; Removal of sulfur; Task-specific ionic liquids; Tetrachloroferrate, Desulfurization
note: cited By 7
abstract: The room temperature and task-specific ionic liquids nowadays have been investigated widely for the removal of sulfur compounds from the natural gas streams. However, the major challenge is the recovery of the desulfurized ionic liquids, which need some significant developments. In this study, two magnetic ionic liquids including the 1-butyl-3-methylimidazolium tetrachloroferrate BmimFeCl4 and 1-butyl-3-methylimidazolium thiocyanate BmimSCN were investigated for their interaction with the sulfur-rich compound, that is, dibenzothiophene. The ionic liquids samples were desulfurized and then regenerated with the co-solvent hexane. The samples were characterized and investigated with the analytical techniques including the Fourier-transform infrared spectroscopy, ultraviolet�visible absorption analysis, thermogravimetric analysis, and detailed analysis by Raman spectroscopy. The desulfurization results demonstrated that there is no significant influence of the dibenzothiophene molecules on the basic structures of ionic liquids. The regeneration results revealed that the high polarity of the co-solvent hexane successfully dissolve the dibenzothiophene and efficiently separated from the ionic liquids. Hence, the work present here in this study could be applied for the extractive removal of sulfur compounds from ionic liquids for their regeneration using high polarity co-solvent hexane. © 2019 John Wiley & Sons, Ltd.
date: 2020
publisher: John Wiley and Sons Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074773815&doi=10.1002%2fjrs.5784&partnerID=40&md5=2a45341208fd6f4f6d82f9f5846a29e4
id_number: 10.1002/jrs.5784
full_text_status: none
publication: Journal of Raman Spectroscopy
volume: 51
number: 3
pagerange: 546-554
refereed: TRUE
issn: 03770486
citation:   Ullah, S. and Bustam, M.A. and Al-Sehemi, A.G. and Assiri, M.A. and Gonfa, G. and Mukhtar, A. and Ayoub, M. and Ahmad, T.  (2020) Experimental investigations on the regeneration of desulfurized 1-butyl-3-methylimidazolium tetrachloroferrate BmimFeCl4 and 1-butyl-3-methylimidazolium thiocyanate BmimSCN ionic liquids: A raman spectroscopic study.  Journal of Raman Spectroscopy, 51 (3).  pp. 546-554.  ISSN 03770486