Extraction of S- and N-compounds from the mixture of hydrocarbons by ionic liquids as selective solvents (CROSBI ID 194292)
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Gabrić, Beata ; Sander, Aleksandra ; Cvjetko Bubalo, Marina, Macut, Dejan
engleski
Extraction of S- and N-compounds from the mixture of hydrocarbons by ionic liquids as selective solvents
Liquid-liquid extraction is an alternative method that can be used for desulfurization and denitrification of gasoline and diesel fuels. Recent approaches employ different ionic liquids as the selective solvent, due to its general immiscibility with gasoline and diesel, negligible vapor pressure and high selectivity to sulfur and nitrogen containing compounds. For that reason, five imidazolium-based and one pyridinium-based ionic liquid were selected for extraction of thiophene, dibenzothiophene and pyridine from two model solutions. The influence of hydrodynamic conditions, mass ratio and number of stages were investigated. Increasing the mass ratio of ionic liquid / model fuel and multistage extraction promotes the desulfurization and denitrification ability of the examined ionic liquids. All selected ionic liquid can be reused and regenerated by means of vacuum evaporation.
denitrification; desulfurisation; model fuels; ionic liquids; liquid-liquid extraction; regeneration
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