Vanadium-catalyzed extractive oxidesulfurization of commercial diesel in ionic liquid with combined oxidizing agents |
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| Authors: | Hafsa Benmabrouka Djamila Boufades Anissa Moussiden Nadjet Berrabia Louey Tliba |
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| Affiliation: | 1. LSP Laboratory, Chemistry Department, FHC, University M’hamed Bougara, Boumerdes, Algeria;2. CRSTAP, Tipaza, Algeria;3. Kasdi Merbah University, Ouargla, Algeria |
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| Abstract: | A series of vanadium catalysts were synthesized and employed in pyridinium phosphate [HPy][H2PO4] with various oxidants for extractive catalytic oxidesulfurization (ECODS) of diesel. The VO(acac)2 showed high catalytic activity with HNO3/H2SO4 and ionic liquid via microwave radiations in the MECODS of diesel. The sulfur removal could reach 98.9% in 210?s at 500?W, which was superior to that of the simple ECODS (89.3%) under optimal conditions (Vdiesel?=?20?mL, VIL/Vdiesel volume ratio?=?0.075, m(VO(acaca)2)/mdiesel?=?0.5?wt%, V(HNO3)/V(H2SO4)?=?1 and T?=?80?°C). The catalytic system could be regenerated six times without significant loss of activity. |
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| Keywords: | vanadium catalyst ionic liquid oxidesulfurization diesel selectivity |
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