O-97 Oxidative desulfurization of diesel fraction with hydrogen peroxide in the presence of catalysts based on transition metals / E. V. Rakhmanov, A. V. Tarakanova, T. Valieva, V. V. Litvinova, A. L. Maksimov, A. A. Anisimov, S. V. Vakarin, O. L. Semerikova, Yu. P. Zaikov // Petroleum Chemistry. - 2014. - Vol. 54, № 1. - С. 48-50 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ВОЛЬФРАМАТ МОЛИБДАТА -- БЕНЗОТИОФЕН Аннотация: The oxidative desulfurization of a straight-run, nonhydrotreated diesel fraction (boiling range 178–342°C) containing benzothiophene, dibenzothiophene, their alkyl-substituted derivatives, and thioxanthene by the action of hydrogen peroxide in the presence of transition metal compounds (Na2MoO4, Na2WO4, NaVO3, WO3, tungstic acid, and heteropoly tungstate/molybdate H3PMo6W6O40) in a biphasic system followed by the extraction of the oxidation products with dimethylformamide has been studied. The oxidation of the hydrocarbon fraction in the presence of heteropoly tungstate/molybdate under biphasic conditions provides for the removal of up to 82% of total sulfur. |