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Study on Decarburization Behavior in BOF Steelmaking Based on Multi-Zone Reaction Mechanism
Zicheng Xin1,2, Wenhui Lin3, Jiangshan Zhang1
1State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China.
Materials (Basel, Switzerland)
|October 16, 2025
Summary
Decarburization in basic oxygen furnace steelmaking primarily occurs in the jet impact zone. Optimizing reaction conditions and scrap steel melting is key for precise endpoint carbon control.
Area of Science:
- Metallurgical Engineering
- Chemical Engineering
- Materials Science
Background:
- Basic oxygen furnace (BOF) steelmaking relies on efficient decarburization.
- Understanding reaction zone contributions is crucial for process optimization.
Purpose of the Study:
- Investigate decarburization behavior in BOF steelmaking using a multi-zone reaction mechanism.
- Quantitatively analyze the impact of key factors on decarburization.
Main Methods:
- Multi-zone reaction mechanism analysis.
- Quantitative analysis of effective reaction amounts, post combustion ratio (PCR), and scrap steel carbon content.
Main Results:
- Decarburization predominantly occurs in the jet impact zone (approx. 76%).
- Effective reaction amount significantly impacts decarburization rate and endpoint carbon.
- PCR and scrap steel melting behavior are critical for precise control.
Conclusions:
- The jet impact zone is the primary site for decarburization in BOF steelmaking.
- Quantitative insights enable precise control of endpoint carbon content.
- This study provides a foundation for optimizing BOF process efficiency.
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