Superoxide radical and UV irradiation in ultrasound assisted oxidative desulfurization (UAOD): a potential alternative for green fuels

Abstract

This study is aimed at improving the current ultrasound assisted oxidative desulfurization (UAOD) process by utilizing superoxide radical as oxidant. Research was also conducted to investigate the feasibility of ultraviolet (UV) irradiation-assisted desulfurization. These modifications can enhance the process with the following achievements:?Meet the upcoming sulfur standards on various fuels including diesel fuel oils and residual oils?More efficient oxidant with significantly lower consumption in accordance with stoichiometry?Energy saving by 90%?Greater selectivity in petroleum composition