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Co-treatment of Waste From Steelmaking Processes: Steel Slag-Based Carbon Capture and Storage by Mineralization

Qing Zhao, Xinyi Chu

2020encarbon capturesteel slagmineralizationwaste managementsustainability

Abstract

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The iron and steel industry is an energy-intensive sector, producing large amounts of waste/by-products, such as CO2, metallurgical slag, and wastewater. Effective treatment of steelmaking waste contributes to environmental sustainability and resource conservation. This work presents a summary of recent research on steel slag-based carbon capture and storage (SS-CCS) via mineralization, an approach harnessed due to the high basicity of steel slag. We compared three SS-CCS routes: direct gas-solid carbonation, direct aqueous carbonation, and indirect carbonation, each with unique mechanisms and efficiencies. The challenges associated with these methods, including scalability and economic viability, are discussed alongside the prospects for advancing SS-CCS technologies. Overall, the ability to utilize steel slag for CO2 mineralization not only provides a viable strategy for carbon emissions reduction but also offers a pathway for sustainable waste management in the steel industry.

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Cite This Work

@article{ea0d6c5e-3909-41b8-a335-ffd914d58e32,
  title={Co-treatment of Waste From Steelmaking Processes: Steel Slag-Based Carbon Capture and Storage by Mineralization},
  author={Qing Zhao and Xinyi Chu},
  year={2020},
  language={en}
}
TY  - JOUR
TI  - Co-treatment of Waste From Steelmaking Processes: Steel Slag-Based Carbon Capture and Storage by Mineralization
AU  - Qing Zhao
AU  - Xinyi Chu
PY  - 2020
LA  - en
ER  -

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