AP19676664 " Deep Eutectic Solvents for Fuel Desulfurization"

Relevance

The resulting deep eutectic solvents are a new class of environmentally friendly compounds capable of efficiently extracting sulfur compounds from fuels.

Purpose

The aim of the project is to develop new extractive systems based on deep eutectic solvents for the purification of fuels from sulfur compounds by extraction from the liquid phase.

Expected and achieved results

The extractive abilities of deep eutectic solvents have been studied. Of all the synthesized GER, betaine–based solvents showed the maximum extractive ability, namely, mixtures of betaine and glycerol in molar ratios [1:2] GER 1 and betaine and ethylene glycol [1:3] GER 2. As expected, GER 1 is more effective than GER 2 for desulfurization of synthetic gasoline. GER 2 was much less effective for thiophene extraction: only 26.96% was obtained at the first stage. The extraction process using GER 2 results in a loss of approximately 17% of toluene. For benzothiophene, the best result was shown by GER synthesized by mixing the hydrogen bond acceptor TBAB tetrabutylammonium bromide and the hydrogen bond donor DC (decanoic acid) in a weight ratio of 1:2 by weight at room temperature, the extraction efficiency varied between 78%. For dibenzothiophene, the best results were obtained for GER consisting of tetrabutylammonium chloride (TBACH) N(C16H36)Cl and polyethylene glycol 400 PEG 400, the extraction efficiency of dibenzothiophene is 85%.

Research team members with their identifiers (Scopus Author ID, Researcher ID, ORCID, if available) and links to relevant profiles

Scientific supervisor - Rafikova Khadichakhan Sabirzhanovna

List of publications with links to them

1. Ryspaeva S. et al. Deep eutectic solvents for sustainable management of asphaltene deposition in oil production //Engineered Science. – 2024. – Т. 29. – С. 1102.
2. Islam S. et al. Desulfurization and Denitrogenation Using Betaine-Based Deep Eutectic Solvents //Journal of Chemical & Engineering Data. – 2024. – Т. 69. – №. 6. – С. 2244-2254.
3. Işik U. et al. Half‐sandwich ruthenium (II) and iridium (III) complexes of imidazole based phosphinite ligands: antioxidant and antibacterial activities as well as electrochemical properties //ChemistrySelect. – 2024. – Т. 9. – №. 6. – С. e202304785.

Керимкулова А. Ж. и др. Экстракционная сероочистка нефтяного топлива с использованием глубокоэвтектических растворителей //Вестник Университета Шакарима. Серия технические науки. – 2024. – Т. 1. – №. 2 (14). – С. 481-495.