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Volume 18
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10.3390/ma18051097
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Review

Recent Developments in Catalytic Carbonyl Sulfur Hydrolysis

by
Zongshe Liu
1,
Yinjuan Dong
2,3,*,
Chenghua Xu
2,3,
Feng Chen
1,
Wenzhu Liu
1,
Yan Yang
2,3 and
Lingyu Guo
2
1
Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu 610200, China
2
College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610225, China
3
Air Environmental Modeling and Pollution Controlling Key Laboratory of Sichuan Higher Education Institutes, Chengdu 610225, China
*
Author to whom correspondence should be addressed.
Materials 2025, 18(5), 1097; https://doi.org/10.3390/ma18051097
Submission received: 8 January 2025 / Revised: 22 February 2025 / Accepted: 24 February 2025 / Published: 28 February 2025
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Abstract

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.
Keywords: carbonyl sulfide; catalytic hydrolysis; catalyst; evaluation metrics; reaction mechanism carbonyl sulfide; catalytic hydrolysis; catalyst; evaluation metrics; reaction mechanism

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MDPI and ACS Style

Liu, Z.; Dong, Y.; Xu, C.; Chen, F.; Liu, W.; Yang, Y.; Guo, L. Recent Developments in Catalytic Carbonyl Sulfur Hydrolysis. Materials 2025, 18, 1097. https://doi.org/10.3390/ma18051097

AMA Style

Liu Z, Dong Y, Xu C, Chen F, Liu W, Yang Y, Guo L. Recent Developments in Catalytic Carbonyl Sulfur Hydrolysis. Materials. 2025; 18(5):1097. https://doi.org/10.3390/ma18051097

Chicago/Turabian Style

Liu, Zongshe, Yinjuan Dong, Chenghua Xu, Feng Chen, Wenzhu Liu, Yan Yang, and Lingyu Guo. 2025. "Recent Developments in Catalytic Carbonyl Sulfur Hydrolysis" Materials 18, no. 5: 1097. https://doi.org/10.3390/ma18051097

APA Style

Liu, Z., Dong, Y., Xu, C., Chen, F., Liu, W., Yang, Y., & Guo, L. (2025). Recent Developments in Catalytic Carbonyl Sulfur Hydrolysis. Materials, 18(5), 1097. https://doi.org/10.3390/ma18051097

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