Co-treatment of waste from steelmaking processes: Steel slag-based carbon capture and storage by mineralization

Qing Zhao; Xinyi  Chu; Xiaohui  Mei; Qingzhang  Meng; Jingyu Li; Chengjun Liu; Henrik Saxén; Ron Zevenhoven

doi:10.3389/fchem.2020.571504

Co-treatment of waste from steelmaking processes: Steel slag-based carbon capture and storage by mineralization

Qing Zhao, Xinyi Chu, Xiaohui Mei^*, Qingzhang Meng, Jingyu Li, Chengjun Liu, Henrik Saxén, Ron Zevenhoven

^*Corresponding author for this work

Research output: Contribution to journal › Review Article or Literature Review › peer-review

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Abstract

The iron and steel industry is an energy-intensive sector, and large amounts of waste/ by-products are generated during the steelmaking process, such as CO₂, metallurgical slag, and wastewater. Enhancing the development and deployment of treating waste from the steelmaking process will be environment friendly and resource-saving. Capturing CO₂ by steel slag (SS) via mineralization is regarded to be an excellent choice due to the high basicity of the slag. In this paper, recent research on the steel slag-based carbon capture and storage (SS-CCS) by mineralization was summarized. Three routes of SS-CCS are compared including, direct gas-solid carbonation, direct aqueous carbonation, and indirect carbonation, respectively. Furthermore, the challenges and prospects for further development of the SS-CCS were discussed.

Original language	English
Article number	571504
Number of pages	7
Journal	Frontiers in Chemistry
Volume	8
DOIs	https://doi.org/10.3389/fchem.2020.571504 https://doi.org/10.3389/fchem.2020.571504
Publication status	Published - 16 Oct 2020
MoE publication type	A2 Review article in a scientific journal

Keywords

carbon capture and storage, steel slag, carbon emission reduction, waste management, mineralization

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title = "Co-treatment of waste from steelmaking processes: Steel slag-based carbon capture and storage by mineralization",

abstract = "The iron and steel industry is an energy-intensive sector, and large amounts of waste/ by-products are generated during the steelmaking process, such as CO2, metallurgical slag, and wastewater. Enhancing the development and deployment of treating waste from the steelmaking process will be environment friendly and resource-saving. Capturing CO2 by steel slag (SS) via mineralization is regarded to be an excellent choice due to the high basicity of the slag. In this paper, recent research on the steel slag-based carbon capture and storage (SS-CCS) by mineralization was summarized. Three routes of SS-CCS are compared including, direct gas-solid carbonation, direct aqueous carbonation, and indirect carbonation, respectively. Furthermore, the challenges and prospects for further development of the SS-CCS were discussed.",

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AU - Zhao, Qing

AU - Chu, Xinyi

AU - Mei, Xiaohui

AU - Meng, Qingzhang

AU - Li, Jingyu

AU - Liu, Chengjun

AU - Saxén, Henrik

AU - Zevenhoven, Ron

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N2 - The iron and steel industry is an energy-intensive sector, and large amounts of waste/ by-products are generated during the steelmaking process, such as CO2, metallurgical slag, and wastewater. Enhancing the development and deployment of treating waste from the steelmaking process will be environment friendly and resource-saving. Capturing CO2 by steel slag (SS) via mineralization is regarded to be an excellent choice due to the high basicity of the slag. In this paper, recent research on the steel slag-based carbon capture and storage (SS-CCS) by mineralization was summarized. Three routes of SS-CCS are compared including, direct gas-solid carbonation, direct aqueous carbonation, and indirect carbonation, respectively. Furthermore, the challenges and prospects for further development of the SS-CCS were discussed.

AB - The iron and steel industry is an energy-intensive sector, and large amounts of waste/ by-products are generated during the steelmaking process, such as CO2, metallurgical slag, and wastewater. Enhancing the development and deployment of treating waste from the steelmaking process will be environment friendly and resource-saving. Capturing CO2 by steel slag (SS) via mineralization is regarded to be an excellent choice due to the high basicity of the slag. In this paper, recent research on the steel slag-based carbon capture and storage (SS-CCS) by mineralization was summarized. Three routes of SS-CCS are compared including, direct gas-solid carbonation, direct aqueous carbonation, and indirect carbonation, respectively. Furthermore, the challenges and prospects for further development of the SS-CCS were discussed.

KW - carbon capture and storage, steel slag, carbon emission reduction, waste management, mineralization

U2 - 10.3389/fchem.2020.571504

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JO - Frontiers in Chemistry

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Co-treatment of waste from steelmaking processes: Steel slag-based carbon capture and storage by mineralization

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