The removal of sulfur compounds from fuel oil has been a major concern of the fuel industry. Hydrodesulfurization (HDS) is the most common desulfurization method currently used in oil refineries. However, HDS requires high temperature and high pressure conditions, consumption of hydrogen, and the removal effect of thiophene sulfides is not ideal. In view of defects of HDS, nonhydrodesulfurization technologies have been developed. Oxidative desulfurization (ODS) is regarded as the most potential desulfurization technology to replace HDS in industry because of mild operating conditions and high desulfurization efficiency. However, most ODS reactions are performed in heterogeneous systems. The common problem is that the oxidant and sulfur-containing compounds cannot contact effectively. Phase Transfer Catalysts (PTCs) are a class of catalysts that can assist in the transfer of reactants, thereby increasing mass transfer and accelerating the reaction rate of the heterogeneous ODS system. In this review, we divide PTCs applied to ODS into quaternary ammonium salts PTCs, ILs PTCs, polymers PTCs, supported PTCs and reaction-controlled PTCs, and will systematically introduce and summarize the research progress of PTCs used in ODS system. It is pointed out that reaction-controlled PTCs have a broad prospect in ODS system. In addition, the synthesis and recovery of PTCs will be briefly described.

从燃料油中去除硫化合物一直是燃料工业的主要关注点。加氢脱硫（HDS）是目前炼油厂最常用的脱硫方法。但HDS需要高温高压条件，消耗氢气，对噻吩硫化物的去除效果不理想。针对HDS的缺陷，开发了非加氢脱硫技术。氧化脱硫（ODS）由于操作条件温和、脱硫效率高，被认为是工业上最有潜力替代HDS的脱硫技术。然而，大多数 ODS 反应是在异质系统中进行的。常见的问题是氧化剂和含硫化合物不能有效接触。相转移催化剂 (PTC) 是一类可以帮助反应物转移的催化剂，从而增加传质并加快非均相 ODS 系统的反应速率。在这篇综述中，我们将应用于ODS的PTCs分为季铵盐PTCs、ILs PTCs、聚合物PTCs、负载型PTCs和反应控制的PTCs，并将系统地介绍和总结用于ODS系统的PTCs的研究进展。指出反应控制的PTC在ODS系统中具有广阔的前景。此外，将简要描述PTC的合成和回收。PTCs、支撑PTCs和反应控制PTCs，将系统介绍和总结PTCs在ODS系统中的研究进展。指出反应控制的PTC在ODS系统中具有广阔的前景。此外，将简要描述PTC的合成和回收。PTCs、支撑PTCs和反应控制PTCs，将系统介绍和总结PTCs在ODS系统中的研究进展。指出反应控制的PTC在ODS系统中具有广阔的前景。此外，将简要描述PTC的合成和回收。