Catalytic Oxidative Desulfurization of Heavy Naphtha Fraction Over a PMN550 Catalyst, Reactivity and a Kinetic Model

Desulfurization of heavy naphtha by a catalytic oxidation process combining hydrogen peroxide with organic and inorganic acids in the presence PMN550 catalyst. This study was conducted to find out effect many variables on efficiency process, especially peroxide, amount acid, temperature, residence time, weight catalyst (0.01-0.6) g, temperature (20-120) C, time (20-140) minutes, ratio (0.1-0.6) ml acid (0.01-0.175) ml. The depends all above variables. Desulphurization using oxidizers combination glacial acetic phthalic malic sulfuric formic acid. maximum removal sulfur which are 50%, 55%, respectively. carried In two steps: first step at moderate atmospheric pressure, second extract oxidized mixture methanol-water mixture. reached 99%. manufactured laboratory set tests were performed it FT-IR, AFM, BET, XRD, XRF, It has proven its efficacy. Mathematical models relevant reactions developed match experimental results obtaining optimal kinetic parameters. Using optimization methods, conversion rate 99%, 90°C, 60 minutes initial concentration 651.3ppm.