Performance and Cost Analysis of Pressure Swing Adsorption for Recovery of H 2, CO, and CO 2 from Steelworks Off-Gases

Fidal I. Bashir, Richard T. J. Porter (), Elena Catalanotti and Haroun Mahgerefteh
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Fidal I. Bashir: Department of Chemical Engineering, University College London, London WC1E 7JE, UK
Richard T. J. Porter: Department of Chemical Engineering, University College London, London WC1E 7JE, UK
Elena Catalanotti: Department of Chemical Engineering, University College London, London WC1E 7JE, UK
Haroun Mahgerefteh: Department of Chemical Engineering, University College London, London WC1E 7JE, UK

Energies, 2025, vol. 18, issue 10, 1-21

Abstract: The conceptual design and techno-economic assessment of Pressure Swing Adsorption (PSA) for the recovery of H 2 , CO 2 , and CO from steel making Blast Furnace-Basic Oxygen Furnace and Coke Oven off-gases, major contributors to anthropogenic carbon emissions, are presented. Three PSA units are modeled on Aspen Adsorption V14, each utilising dedicated adsorbents and configurations tailored for the target gas. Model validation is successfully conducted by comparing breakthrough simulation results with experimental data. The simulation results demonstrate that the PSA systems effectively separate H 2 (99.3% purity, 80% recovery), CO (98% purity, 87% recovery), and CO 2 (96.9% purity, 75% recovery) from steelmaking off-gases. Meanwhile, the techno-economic assessment indicates that the PSA systems are economically viable, with competitive costs of £2768/tH 2 , £52.78/tCO, and £16.89/tCO 2 captured, making them an effective solution for gas separation in the steel industry.

Keywords: adsorption; pressure swing adsorption; vacuum swing adsorption; process simulation; techno-economic analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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