Removal of Thiophene and Benzothiophene by using 1-methyl-3-methylimidazolium dimethyl phosphate, [MMIM] [DMP] Ionic Liquid from Dodecane

1-methyl-3methylimidazolium dimethylphosphate ([MMIM][DMP]) ionic liquid (IL), were
prepared and demonstrated to be effective for the removal of aromatic sulfur compounds (Scompound)
thiophene and benzothiophene (BT) from crude oil model (Dodecane) in terms of
sulfur partition coefficient (KN) at 298.15 K. The result shows that the sulfur removal
selectivity for [MMIM][DMP] is depend on the molecular structure of the aromatic Scompounds
and follow the order BT > thiophene. Some analysis has been done on
[MMIM][DMP] IL in order to obtain its characteristic such as identification ofiL's molecular
structure by using Nuclear Magnetic Resonance (NMR) spectroscopy, density, water content
and identification of IL's functional group by using Fourier Transform Infrared (FTIR)
Spectroscopy. The knowledge of characteristics of IL is important from an engineering point
of view because it plays a major role in a lot of operation such as heating, stirring and mixing.