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 journalReview Article or Literature ReviewScientificpeer-review

2 Citations (Scopus)
6 Downloads (Pure)

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 languageEnglish
Article number571504
Number of pages7
JournalFrontiers in Chemistry
Volume8
DOIs
Publication statusPublished - 16 Oct 2020
MoE publication typeA2 Review article in a scientific journal

Keywords

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

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