The oxidative desulfurization of five (5) model sulfur compounds and eleven (11) surrogate blends was investigated using the hydrogen peroxide (H₂O₂)-acetic acid (CH₃COOH) system. Consequently, extractive desulfurization was carried out using conventional solvents. The model sulfur compounds, as well as the solvent, are present in petroleum middle distillates. The selection of the compounds was made so that they represent various kinds of sulfur compounds. The goal of this study was the implementation of a simple and economical oxidative and extractive system for the desulfurization of surrogate mixtures with an intermediate sulfur concentration 1% w/w, at the mild temperature of 70°C, and without the use of supplementary and assisting methods such as heterogeneous catalysis or ultrasound irradiation. The sulfur content was estimated using X-ray fluorescence. The progress of the oxidation reaction was monitored using liquid FT-IR. The solid sediments of the oxidation procedure were identified with solid-state FT-IR and ¹H NMR spectroscopy.

中文翻译：

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光谱技术评估中间馏分替代燃料的氧化脱硫

使用过氧化氢（H ₂ O ₂）-乙酸（CH ₃）研究了五（5）个模型硫化合物和十一（11）个替代混合物的氧化脱硫COOH）系统。因此，使用常规溶剂进行萃取脱硫。石油中间馏分中存在模型硫化合物以及溶剂。进行化合物的选择，以使其代表各种硫化合物。这项研究的目标是实现一个简单且经济的氧化和萃取系统，用于在70°C的温和温度下，中间硫浓度为1％w / w的替代混合物进行脱硫，而无需使用补充剂和辅助方法，例如多相催化或超声辐照。使用X射线荧光估计硫含量。使用液体FT-IR监测氧化反应的进程。¹ H NMR光谱。