| Issue |
Korean Journal of Chemical Engineering,
Vol.29, No.1, 49-53, 2012
Vol.29, No.1, 49-53, 2012
Deep removal of sulfur from real diesel by catalytic oxidation with halogen-free ionic liquid
A halogen-free task-specific ionic liquid (TSIL) of 1-(2-carboxylic acid) ethyl-3-methylimidazolium bisulfate ([(CH2)2COOHmim] [HSO4]) is applied for deep oxidative desulfurization of real diesel as a catalyst and reaction media. The sulfur level of real diesel can be reduced from 200 to 20.5 μg/g at room temperature with small amount of ionic liquid using H2O2 as an oxidant. The used ionic liquid can be easily recycled and no obvious decrease in catalytic activity can be found after recycling five times.
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