OXIDESULFURIZATION OF ORGANOSULFUR COMPOUNDS PREVAILING IN DIESEL AND JET FUEL, WITH SUPPORTED V2O5 CATALYSTS
Oxidesulfurization (ODS) of diesel and jet fuel was performed in presence of supported vanadium oxide catalysts. Catalysts were obtained by thermal spreading, V2O5/Al2O3 and V2O5/TiO2. According to the DBT activity in jet fuel, the catalyst and oxidant agent (H2O2 or tertbutyl hydroperoxide) was chosen. Results show that total removal of S-compounds and DBT sulfone yield is improved using H2O2 and V2O5/Al2O3 catalyst. Using this catalyst and oxidant, ODS reactivity of dibenzothiophenic compounds (BT, DBT, 4-MDBT and 4,6-DMDBT) in both diesel and jet fuel was evaluated. Results show that ODS activity is higher in diesel than in jet fuel, and it was attributed to a higher oxidant decomposition
Arends, I. W. C. E. y Sheldon, R. A. (2001). Activities and stabilities of heterogeneous catalysts in selective liquid phase oxidations: recent developments. Applied Catalysis A: General 212, 175-187.
Babich, I. V. y Moulijn, J.A. (2003). Science and technology of novel process for deep desulfurization of oil refinery streams: a review. Fuel 82, 607-631.
Becerra J., Gómez, H., Navarro, J. y Cedeño, L. (2005). Efecto del proceso de extracción sobre la desulfuración oxidativa de compuestos benzotiofénicos. Revista de la Academia de Catálisis 6, 66-67.
Bulushev, D.A., Kiwi-Minsker, L. y Renken, A. (2000). Vanadia/titania catalysts for gas phase partial toluene oxidation. Spectroscopic characterisation and transient kinetics study. Catalysis Today 57, 231–239.
Cedeño, L., Hernández, E., Pedraza, F. y Murrieta, F. (2005). Oxidative desulfurization of synthetic diesel using supported catalysts. part I. Study of the operation conditions with vanadium oxide based catalyst. Catalysis Today 107-108, 564-569.
Corma, A., Esteve, P. y Martinez, A. (1996). Solvent effects during the oxidation of olefins and alcohols with hydrogen peroxide on Ti-Beta catalyst: the influence of the hydrophilicity- hydrophobicity of the zeolite. Journal of Catalysis 161, 11-19.
De Filippis, P. y Scarsella, M. (2003). Oxidative desulfurization: oxidation reactivity of sulfur compounds in different organic matrixes. Energy & Fuels 17, 1452-1455.
Gomez, H. y Cedeño, L. (2005). Solvent effects during oxidation-extraction desulfurization process of aromatic sulfur compounds from fuels. International Journal of Chemical Reactor Engineering 3, A28. www.bepress.com/ijcre/vol3/A28.
Haber, J., Machej, T., Serwicka, E.M. y Wachs, I.E. (1995). Mechanism of surface spreding in vanadia-titania system. Catalysis Letters 32, 101-114.
Hulea, V., Fajula, F. y Bousquet, J. (2001). Mild oxidation with H2O2 over Ticontaining molecular sieves. A very efficient method for removing aromatic sulfur compounds from fuels. Journal of Catalysis 198, 179-186.
Ishihara, A., Wang, D., Dumeignil, F., Amano, H., Qian, E. W. y Kabe, T. (2005). Oxidative desulfurization and denitrogenation of a light gas oil using an oxidation/adsorption continuos flow process. Applied Catalysis A: General 279, 279–287.
Kaufmann, T.G., Kaldor, A., Stuntz, G.F., Kerby, M.C. y Ansell, L.L. (2000). Catalysis science and technology for cleaner transportation fuels. Catalysis Today 62, 77–90.
Kong, L., Li, G. y Wang, X. (2004). Mild oxidation of thiophene over TS-1/H2O2. Catalysis Today 93–95, 341–345.
Masters, C. (1981) Homogenous Transition Metal Catalysis. Chapman and Hall Ltd.
Murata, S., Murata, K., Kidena, K. y Nomura, M. (2004). A novel oxidative desulfurization system for diesel fuels with molecular oxygen in the presence of cobalt catalysts and aldehides. Energy & Fuels 18, 116-121.
Otsuki, S., Nonaka, T., Takashima, N., Qian, W., Ishihara, A., Imai, T. y Kabe, T. (2000). Oxidative desulfurization of light gas oil and vacuum gas oil by oxidation and solvent extraction. Energy & Fuels 14, 1232-1239.
Shiraishi, Y. y Hirai, T. (2004) Desulfurization of vacuum gas oil based on chemical oxidation followed by liquid-liquid extraction. Energy & Fuels 18, 37-40.
Struckul, G. (1992) Catalytic Oxidations with Hydrogen Peroxide as Oxidant. Struckul G. (Ed.) Kluwer Academic Publishers, Dordrecht.
Te, M., Fairbridge, C. y Ring, Z. (2001). Oxidation reactivities of dibenzothiophenes in polyoxometalate / H2O2 and formic acid / H2O2 systems. Applied Catalysis A: General 219,267–280.
Wang, D., Qian, E.W., Amano, H., Okata, K., Ishihara, A. y Kabe, T. (2003). Oxidative desulfurization of fuel oil. Part I. Oxidation of dibenzothiophenes using tert-butyl hydroperoxide. Applied Catalysis A: General 253, 91- 99.
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