Oxidative desulfurization (ODS) of Iranian high sulfur gas oil feedstock

Oxidative desulfurization (ODS) of untreated high sulfur gas oil produced by an Iranian refinery (Tehran, Iran) with total sulfur content of 7990 ppmw was carried out using hydrogen peroxide – formic acid oxidation system. The influences of various operating parameters including reactiontemperature, hydrogen peroxide/sulfur molar ratio (O/S), and formic acid/sulfur molar ratio(Acid/S) on the desulfurization of gas oil were investigated. The appropriate conditions were found to be the reaction temperature = 80 ºC, O/S = 5, and Acid/S = 30. The achieved desulfurization of the present ODS process under these appropriate conditions was found to be over 97%.

کلیدواژه ها:

Desulfurization ، Oxidation ، Solvent extraction ، gas oil