Industrial Application of Bottom–Blown CO 2 in Basic Oxygen Furnace Steelmaking Process

A significant amount of CO 2 is emitted and utilized in the production processes engaged by iron and steel enterprises. Herein, the feasibility and principles of CO 2 participation in the steelmaking process are analyzed, and an industrial examination of bottom‐blown CO 2 smelting in a 120 t convert...

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Bibliographic Details
Published inSteel research international Vol. 92; no. 10
Main Authors Feng, Chao, Zhu, Rong, Liu, Runzao, Dong, Kai, Wei, Guangsheng
Format Journal Article
LanguageEnglish
Published 01.10.2021
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Summary:A significant amount of CO 2 is emitted and utilized in the production processes engaged by iron and steel enterprises. Herein, the feasibility and principles of CO 2 participation in the steelmaking process are analyzed, and an industrial examination of bottom‐blown CO 2 smelting in a 120 t converter is performed; this serves to summarize and verify the metallurgical advantages of CO 2 participation in the converter steelmaking process. The injection of CO 2 improves the effects of dephosphorization and denitrification, reduces the end‐point oxygen content of molten steel, diminishes the consumption of the slagging agent, and contributes to a reduction in production costs and improvement in product quality. This study analyzes two different recycling paths of CO 2 in iron and steel enterprises, providing a new mechanism for CO 2 emission reduction.
ISSN:1611-3683
1869-344X
DOI:10.1002/srin.202000704