To address environmental pollution, the chemical industry is continually refining its standards. In the United States and Europe, regulations stipulate that the sulfur content in diesel fuel must not exceed 15 ppm. This stringent requirement has driven continuous research into advanced fuel upgrading techniques. One such promising method is oxidative desulfurization (ODS), which removes sulfur compounds by converting them into sulfones, thereby improving their extractability into other phases. This mini-review aims to provide a qualitative analysis of the fundamental principles of ODS. It examines the roles of various oxidizing agents, extraction solvents, and heterogeneous catalysts, highlighting their respective advantages and limitations. Furthermore, the review elucidates the integrated reaction-extraction approach and explores emerging technologies and challenges associated with biodiesel upgrading in the context of biofuels. A quantitative section synthesizes representative results to provide a comprehensive overview. In conclusion, this paper underscores the importance of understanding both the benefits and limitations of ODS and emphasizes the necessity for ongoing research in the field of biodiesel production.

中文翻译：

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液体燃料的催化氧化脱硫：氧化剂、萃取剂和多相催化剂的影响以及生物柴油升级的前景 - 一个小评论


为了解决环境污染，化工行业不断完善其标准。在美国和欧洲，法规规定柴油中的硫含量不得超过15 ppm。这一严格的要求推动了对先进燃料升级技术的不断研究。其中一种有前途的方法是氧化脱硫（ODS），它通过将硫化合物转化为砜来去除硫化合物，从而提高它们进入其他相的可萃取性。本小型审查旨在对消耗臭氧层物质的基本原理进行定性分析。它研究了各种氧化剂、萃取溶剂和多相催化剂的作用，强调了它们各自的优点和局限性。此外，该综述阐明了综合反应-萃取方法，并探讨了与生物燃料背景下的生物柴油升级相关的新兴技术和挑战。定量部分综合了代表性结果以提供全面的概述。总之，本文强调了解消耗臭氧层物质的优点和局限性的重要性，并强调在生物柴油生产领域持续研究的必要性。