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Abstract
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Fuel combustion releases sulfur-containing compounds, which react to form environmentally harmful sulfur oxides that pose a threat to human health. To mitigate these negative effects, it is essential to pre-treat the fuel oil through the desulfurization process. One promising approach is using three-component metal deep eutectic solvents (MDESs) and the hydrogels obtained from these solvents. Composite materials (synthesized from DES) effectively reduce sulfur content in fuel oil. The effects of various factors on the removal rate of dibenzothiophene (DBT) in n-octane simulated oil were investigated which showed a very high efficiency and was used up to six times cyclically. The characterization results of DESs through FT-IR and 1H NMR showed that DESs were formed by hydrogen bonding interaction. Extractive desulfurization combined with oxidation was established, where DESs were used as extractants and catalysts.
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