a shfeghat - refining technologies division
m bazmi - refining technologies division
m.a ghaednia - refining technologies division
a khanmohammadi - process engineering development division

Envirinmental regulations for fossil fuels are becoming more and more severe. Sulfur compounds are among the main contaminats in petroleum and a significant portion of these compounds are transferred to fuels during the refining process. In order to produce low sulfur fuels or ultra low sulfur fuels , hydro - desulfurization is a method commonly used but this conventional process has inherent some difficulties. among recent advanes on non-hydrogenenation desulfurization processes , oxidative desulfurization is more attractive in some reasons . operating at lower temperature and pressure , inexpensive catalysts and chemicals and also , lower operating and investment costs, cause to increase study on this new method. in this research work to achieve the optimized parameters , experimental investigation is done on both oxidation and extraction steps. at the first step oxidation , oxidant to condensate ratio , type and amount of the catalyst, oxidation time and the effect of an absorbent accompanied by catalyst have been studied at the second step extration , several extraction solvents and their purities have been tested. according to the experimental results optimum parameters are achieved for maximum desulfurization of the condensate feed.

ixidation, desulfurization, extraction, oxidative desulfurization, gas condensate, sulfur content