Removal of thiophene from model diesel oil with nitrate based ionic liquids at several temperatures

In this work the desulfurization ability of two imidazolium based ionic liquids from n-decane, which is used as a model of fuel, has been developed. The systems of ternary liquid-liquid equilibria containing ionic liquid + n-decane + thiophene have been determined at three different temperatures. All systems have been shown the ability of ILs for removal of thiophene from n-decane. The selectivity and the solute distribution ratio were calculated for all systems. The data obtained have been correlated with non-random two liquid NRTL model. The phase equilibria diagrams for the ternary mixtures including the experimental and calculated tie-lines have been presented. (C) 2015 Published by Elsevier B.V.