Zafar, Anham;
Imtiaz-ud-Din, Imtiaz-ud-;
Batool, Saadia;
Palgrave, Robert G;
Yousuf, Sammer;
(2023)
Deep extractive and catalytic oxidative desulfurization of liquid fuels by using iron(III) based dication ionic liquids.
New Journal of Chemistry: a journal for new directions in chemistry
, 47
(33)
pp. 15731-15747.
10.1039/d3nj02179c.
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Abstract
A series of dicationic ionic liquids (DcILs) (1-5), with varying lengths of alkyl chain along with [FeCl3Br]− as the counter anion, have been synthesized and are characterized by using FT-IR, Raman spectroscopy, and mass spectrometry besides single crystal X-ray analysis. The thermal stability, chemical and elemental composition of the synthesized compounds are assessed by thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS) respectively. They have been exploited as extractants and catalysts for oxidative desulfurization (ODS) of liquid fuels using H2O2 as an oxidizing agent. Certain parameters like the effects of reaction time, temperature, catalyst loading amount, oxidant-to-sulfur ratio, and reactivity of different sulfur substrates on desulfurization have also been surveyed comprehensively. The synthesized DcILs exhibit very efficient extractive and catalytic activity with the advantage of very mild reaction conditions, rapid reaction equilibrium, and substantial sulfur removal at room temperature with minimal amount of catalyst and oxidant. A reaction mechanism of DcILs with DBT has been proposed and its kinetics appeared to be a pseudo-first-order reaction. The extraction and catalytic oxidation (ECODS) process has been explicated and authenticated by GC-MS. The present work demonstrates that DcILs have the least contribution to the contamination of liquid fuels as they are insoluble in them and due to higher recyclability, they may be attributed as green and eco-friendly extractants as well as catalysts.
| Type: | Article |
|---|---|
| Title: | Deep extractive and catalytic oxidative desulfurization of liquid fuels by using iron(III) based dication ionic liquids |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/d3nj02179c |
| Publisher version: | https://doi.org/10.1039/D3NJ02179C |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Chemistry, Chemistry, Multidisciplinary, DIBENZOTHIOPHENE, DIESEL FUEL, EFFICIENT, GASOLINE, IMIDAZOLIUM, MECHANISMS, OIL, ONE-POT EXTRACTION, PERFORMANCE, Physical Sciences, Science & Technology |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10183051 |
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