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Abstract
Carburization is a critical aspect in the iron and steel industry as it significantly affects the mechanical and chemical properties of the final product. This study provides a comprehensive analysis of the carburization potential of high-grade quality iron ore pellets after direct reduction in pure hydrogen. The results show that the porosity of the pellets has a significant impact on the efficiency and success of the direct reduction process with hydrogen. The reduction process can be completed at a lower temperature in pure hydrogen compared to carbon monoxide, with the iron carbide concentration peaking at temperatures up to 500 °C before decreasing with further temperature increases. The uniform distribution of SiO2, Al2O3, and CaO is critical to the carburizing process and affects the final properties of the steel. An increased degree of metallization and porosity are associated with an improved carburizing tendency. This study highlights the intricate interplay between temperature, carbon sources, and the resulting equilibrium concentration of iron carbides and provides insights into the complex dynamics of this phenomenon.
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Authors (6)
-
Angelo Perrone
- Department of Innovation Engineering, University of Salento, Via per Arnesano, 73100 Lecce, Italy
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Pasquale Cavaliere
- Department of Innovation Engineering, University of Salento, Via per Arnesano, 73100 Lecce, Italy
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Behzad Sadeghi
- Department of Innovation Engineering, University of Salento, Via per Arnesano, 73100 Lecce, Italy
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Leandro Dijon
- VALE, Route de Pallatex 29 St-Prex, 1162 Losanna, Switzerland
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach dostępnych w wersji elektronicznej [także online]
- Published in:
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Journal of Sustainable Metallurgy
ISSN: 2199-3823 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Perrone A., Cavaliere P., Sadeghi B., Dijon L., Mirowska A., Koszelow D., Carburization Behavior of High-Grade Pellets After Direct Reduction in Pure Hydrogen, Journal of Sustainable Metallurgy, 2024,10.1007/s40831-024-00906-2
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s40831-024-00906-2
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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