Deep oxidative desulfurization of model fuels catalysed by immobilized ionic liquid on MIL-100(Fe).
RSC Adv
; 9(38): 21804-21809, 2019 Jul 11.
Article
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| MEDLINE
| ID: mdl-35518850
ABSTRACT
Deep desulfurization of fossil fuels has become urgently required because of the serious pollution by the large-scale use of fossil fuels. In this study, [PrSO3HMIm]HSO4@MIL-100(Fe) was synthesized by wet-impregnation of the ionic liquid (IL) of [PrSO3HMIm]HSO4 on MIL-100(Fe). The construction of [PrSO3HMIm]HSO4@MIL-100(Fe) was then confirmed by X-ray powder diffraction, N2 adsorption-desorption experiments, infrared spectroscopy and elemental analysis, and then applied in the oxidative desulfurization of model fuels. In comparison with the corresponding IL, [PrSO3HMIm]HSO4@MIL-100(Fe) showed an enhanced performance in the desulfurization rate of model fuels due to the increase of the mass transfer rate. Under the optimized conditions (oxidant to sulphur ratio = 25, oil to acetonitrile ratio = 1, and temperature = 60 °C), a sulphur removal rate of 99.3% was observed (initial sulphur concentration = 50 ppm). The sulphur removal of three sulphur compounds by catalytic oxidation and extraction followed the order of dibenzothiophene (DBT) > thiophene (T) > benzothiophene (BT).
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MEDLINE
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En
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2019
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Article