Naslov
Extraction of S- and N-compounds from the mixture of hydrocarbons by ionic liquids as selective solvents

Autori
Gabrić, Beata ; Sander, Aleksandra ; Cvjetko Bubalo, Marina, Macut, Dejan

Izvornik
The Scientific World Journal (1537-744X) 2013 (2013); 1-11

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
denitrification; desulfurisation; model fuels; ionic liquids; liquid-liquid extraction; regeneration

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA