Vanadium-catalyzed extractive oxidesulfurization of commercial diesel in ionic liquid with combined oxidizing agents

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...