Liu Zongshe, Dong Yinjuan, Xu Chenghua, Chen Feng, Liu Wenzhu, Yang Yan, Guo Lingyu
Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu 610200, China.
College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610225, China.
Materials (Basel). 2025 Feb 28;18(5):1097. doi: 10.3390/ma18051097.
Carbonyl sulfide (COS) is the most abundant and longest-lasting organic reduced sulfur compound in the atmosphere. Removing it is a critical and challenging aspect in desulfurization technology in order to comply with global restrictions on harmful emissions. Catalytic hydrolysis refers to the process whereby COS reacts with water under the influence of a catalyst to generate carbon dioxide and hydrogen sulfide. Due to its high conversion rate, minimal side reactions, no hydrogen consumption, and mature technology, it has emerged as the most crucial COS removal method at present. Since its inception in the 1940s, research on the catalytic hydrolysis of COS has witnessed encouraging progress over the past several decades. This review summarizes recent advancements in this field. In this review, the evaluation metrics, influencing factors, and reaction mechanism for the COS hydrolysis reaction are briefly introduced. The recent advancements in COS hydrolysis catalysts in recent years are emphasized. Additionally, the existing challenges and potential solutions in this field are also proposed. Finally, the future development directions for this research area are envisioned. The purpose of this review is to offer a reference for the subsequent design and research of high-activity and high-stability hydrolysis catalysts.
羰基硫（COS）是大气中含量最丰富、持续时间最长的有机还原态硫化合物。为了符合全球对有害排放的限制，去除羰基硫是脱硫技术中的一个关键且具有挑战性的方面。催化水解是指在催化剂的作用下，羰基硫与水反应生成二氧化碳和硫化氢的过程。由于其转化率高、副反应少、不消耗氢气且技术成熟，它已成为目前最重要的羰基硫去除方法。自20世纪40年代问世以来，羰基硫催化水解的研究在过去几十年中取得了令人鼓舞的进展。本综述总结了该领域的最新进展。在本综述中，简要介绍了羰基硫水解反应的评估指标、影响因素和反应机理。重点强调了近年来羰基硫水解催化剂的最新进展。此外，还提出了该领域目前存在的挑战及潜在解决方案。最后，展望了该研究领域的未来发展方向。本综述的目的是为后续高活性和高稳定性水解催化剂的设计与研究提供参考。
