Oxidative Desulfurization of Dibenzothiophene Using Ozone and Hydrogen Peroxide in Ionic Liquid

Abstract

Ozone associated with hydrogen peroxide as an advanced oxidation process had been employed to remove dibenzothiophene (DBT) in model oil in an ionic liquid (IL) system. DBT was oxidized availably by ozone and hydroxyl radicals that were generated by ozone and hydrogen peroxide. The oxidative productions of DBT were extracted to the IL phase because of their high polarity. The IL can be recycled 5 times without a significant decrease in desulfurization activity.