حديثه البرزي اوانكي

The presence of sulfur compounds in fossil fuels leads to environmental problems and corrosion of industrial equipment. Conventional desulfurization processes, such as hydrodesulfurization (HDS), pose challenges due to high costs and harsh operating conditions. In this study, oxidative desulfurization (ODS) was investigated as an efficient and environmentally friendly alternative. Initially, the synthesis and characterization of the proposed composite—comprising magnesium oxide, magnetic kaolin, and polyoxometalate—were examined. The synthesis steps included the preparation of magnetic kaolin, synthesis of H₃PMo₁₂O₄₀/MgO, and fabrication of the Magnetic kaolin/H₃PMo₁₂O₄₀/MgO composite. Various analytical methods, such as Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM), were employed to confirm the structure and physicochemical properties of the nanocomposite. The results demonstrated that the proposed composite exhibits suitable thermal stability, high surface area, and favorable catalytic activity for sulfur oxidation reactions. Subsequently, the performance of the synthesized catalyst in the ODS process was eva‎luated. Experimental tests revealed that the catalyst effectively removes sulfur compounds such as dibenzothiophene (DBT) under mild operating conditions. Investigation of parameters such as temperature, oxidizer amount, and catalyst-to-fuel ratio indicated that optimal reaction conditions achieve over 95% removal of sulfur compounds within a short timeframe.

گوگردزدايي اكسايشي , پلي‌اكسومتالات , كائولن مغناطيسي , منيزيم اكسيد , دي‌بنزوتيوفن

Oxidative Desulfurization , Polyoxometalate , Magnetic Kaolin , Magnesium Oxide , Dibenzothiophene

hadiseh alborzi avanaki

hossein ghafuri