Document Type : Research Article
Department of Mechanic Polymer Engineering, Faculty of Engineering, Lorestan University. Khorramabad. Iran
Department of Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
Department of Chemical Engineering, Faculty of Chemical and Petroleum Engineering, Razi University, Kermanshah, Iran
In this paper, oxidative desulfurization of gasoline and diesel samples by using hydrogen peroxide as oxidant and polyoxometallic type of molybdenum and tungsten catalysts has been investigated. The effect of different operating variables including 4 types of catalysts, 4 levels of molar ratio of hydrogen peroxide to sulfur, 4 levels of reaction temperature and 4 real fuels were analyzed by using Taguchi design of experiment. The results show satisfactory performance and stability of oxidation desulfurization of real fuels by using polyoxometallic type of tungsten and molybdenum on montmorillonite bases including KSF and K10. The prediction of removal of sulfur compounds in Taguchi method under optimal conditions (PW / K10 catalyst, temperature conditions 75 ° C, 14 oxidized molar ratios to sulfur compound) for the gasoline fuel after HDS process is 69.04%. Under these optimal conditions, the experiments for the gasoline fuel were repeated 3 times and the average removal of sulfur compounds was reported to be 70.33%. Results of ANOVA analysis shows that the sum of squares R2 for the real fuel was 0.987.