Articles & Issues
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received December 7, 2024
Revised March 26, 2025
Accepted May 6, 2025
Available online July 25, 2025
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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A Low-Cost Support Derived Steel Slag with Amine Modifi cation for Post-combustion CO 2 Capture
https://doi.org/10.1007/s11814-025-00482-5
Abstract
To reduce the CO 2 capture cost of solid amine technology, more attention has been paid to the preparation of support materials
from solid waste sources. We use basic oxygen furnace steel slag and blast furnace slag as raw materials. To obtain porous
support materials, they are treated by acid etching and combined acid-base treatment, respectively. Then modifi ed them using
TEPA, fi nally successfully prepared two types of steel slag-based solid amine materials (BOFS-xTEPA and BFSX-xTEPA).
The technologies of XRF, BET and SEM were used to characterize the materials. A homemade static CO 2 adsorption capacity
tester was utilized to test the CO 2 adsorption capacity of the composites at 15% CO 2 and 85% air (wet). The optimal CO 2
adsorption capacity was explored by controlling the parameters in the material synthesis process. In terms of mechanism, a
rational explanation for the pore formation of the two porous support materials was provided. Finally, the characteristics of
the two steel slag-based solid amine preparation routes were analyzed from various perspectives. In comparison with solid
amines derived from other solid waste sources, the advantages of this project were elucidated.
