Oxidative Desulfurization of Non-hydrotreated Kerosene Using Hydrogen Peroxide and Acetic Acid

Abstract

Abstract: The oxidative desulfurization of a real refinery feedstock (i.e.,non-hydrotreated kerosene with total sulfur mass content of 0.16%) with a mixture of hydrogen peroxide and acetic acid was studied.The influences of various operating parameters including reaction temperature (T),acid to sulfur molar ratio (n_acid/n_S),and oxidant to sulfur molar ratio (n_O/n_S) on the sulfur removal of kerosene were investigated.The results revealed that an increase in the reaction temperature (T) and nacid/nS enhances the sulfur removal.Moreover,there is an optimum n_O/n_S related to the reaction temperature and the best sulfur removal could be obtained at n_O/n_S=8 and 23 for the reaction temperatures of 25 and 60℃,respectively.The maximum observed sulfur removal in the present oxidative desulfurization system was 83.3%.

Key words: oxidative desulfurization, kerosene, hydrogen peroxide, acetic acid, oxidation, extraction

摘要： The oxidative desulfurization of a real refinery feedstock (i.e.,non-hydrotreated kerosene with total sulfur mass content of 0.16%) with a mixture of hydrogen peroxide and acetic acid was studied.The influences of various operating parameters including reaction temperature (T),acid to sulfur molar ratio (n_acid/n_S),and oxidant to sulfur molar ratio (n_O/n_S) on the sulfur removal of kerosene were investigated.The results revealed that an increase in the reaction temperature (T) and nacid/nS enhances the sulfur removal.Moreover,there is an optimum n_O/n_S related to the reaction temperature and the best sulfur removal could be obtained at n_O/n_S=8 and 23 for the reaction temperatures of 25 and 60℃,respectively.The maximum observed sulfur removal in the present oxidative desulfurization system was 83.3%.

关键词: oxidative desulfurization, kerosene, hydrogen peroxide, acetic acid, oxidation, extraction

Asghar Molaei Dehkordi, Mohammad Amin Sobati, Mohammad Ali Nazem. Oxidative Desulfurization of Non-hydrotreated Kerosene Using Hydrogen Peroxide and Acetic Acid[J]. , 2009, 17(5): 869-874.

References

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