Recent Developments in Catalytic Carbonyl Sulfur Hydrolysis.
Zongshe Liu1, Yinjuan Dong2,3, Chenghua Xu2,3
1Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu 610200, China.
Materials (Basel, Switzerland)
|March 13, 2025
Summary
Carbonyl sulfide (COS) removal is vital for emission control. Catalytic hydrolysis, using COS with water and a catalyst, is a key desulfurization technology offering high efficiency and minimal side reactions.
Area of Science:
- Environmental Chemistry
- Catalysis
- Atmospheric Science
Background:
- Carbonyl sulfide (COS) is the most abundant and persistent atmospheric organic sulfur compound.
- Effective desulfurization is crucial for meeting global emission standards.
- Catalytic hydrolysis of COS is a leading technology for its removal due to efficiency and maturity.
Purpose of the Study:
- To review recent advancements in catalytic hydrolysis for carbonyl sulfide (COS) removal.
- To provide insights into evaluation metrics, influencing factors, and reaction mechanisms.
- To identify challenges and future directions for developing high-performance COS hydrolysis catalysts.
Main Methods:
- Literature review of recent research on COS catalytic hydrolysis.
- Analysis of catalyst performance, reaction mechanisms, and influencing factors.
- Discussion of current challenges and potential solutions in desulfurization technology.
Main Results:
- Catalytic hydrolysis is a highly effective method for COS removal with minimal side reactions and no hydrogen consumption.
- Significant progress has been made in developing advanced catalysts for COS hydrolysis since the 1940s.
- Key factors influencing the reaction and mechanisms have been elucidated.
Conclusions:
- Catalytic hydrolysis remains the most critical method for COS removal in desulfurization.
- Further research is needed to address existing challenges and develop more active and stable catalysts.
- This review serves as a reference for future catalyst design and research in COS abatement.
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