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Article 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, [PrSOHMIm]HSO@MIL-100(Fe) was synthesized by wet-impregnation of the ionic liquid (IL) of [PrSOHMIm]HSO on MIL-100(Fe). The construction of [PrSOHMIm]HSO@MIL-100(Fe) was then confirmed by X-ray powder diffraction, N adsorption-desorption experiments, infrared spectroscopy and elemental analysis, and then applied in the oxidative desulfurization of model fuels. In comparison with the corresponding IL, [PrSOHMIm]HSO@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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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9066548 | PMC |
| http://dx.doi.org/10.1039/c9ra03035b | DOI Listing |
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