Study on Desulfurization of Light Gas Oil Using Ionic Liquids Assisted with Ultrasonication

Abstract

The present work aimed to investigate the feasibility of removing sulfur from real light gas oil using different types of inorganic ionic liquids (ILs) assisted by ultrasonic waves in a continuous flow setup. Experimental results showed that within 30 min, 66% of sulfur was removed under mild conditions using 10wt%NaOH assisted by ultrasonic waves. It was found that ultrasonic waves not only facilitate the sulfur removal but it improves gas oil properties by decreasing density and viscosity while cetane number (CN) showed a different trend. A correlation of solute selectivity as a function of sulfur mole fraction was presented