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Springer Science and Business Media LLC Scientific Reports 13(1)
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    초록·키워드

    The N<sub>1</sub>,N<sub>1</sub>,N<sub>3</sub>,N<sub>3</sub>-tetramethyl -N<sub>1</sub>,N<sub>3</sub>-diphenylpropane-1,3-diaminium dichloride ionic liquid (ILc) is an environmentally friendly catalyst for oxidative-extractive desulfurization of gas oil (sulfur content = 2400 ppm) in the presence of H<sub>2</sub>O<sub>2</sub> as an oxidizing agent. The precise structure of the prepared IL was confirmed using FT-IR spectroscopy, and<sup>1</sup>H-NMR. The reaction temperature, IL ratios, H<sub>2</sub>O<sub>2</sub> dosage, and reaction time were studied to assess their effects on the desulfurization efficiency. The thermodynamic parameters of the oxidation reaction were determined. A desulfurization efficiency of 84.7% was obtained after the extractive desulfurization process using acetonitrile as an organic solvent at a solvent to feed ratio of 1:1 (v/v). Furthermore, the prepared IL may be reused for at least six cycles without any significant change in its desulfurization performance or chemical structure, which confirms its high reusability.

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