LAPSE:2026.0318
Published Article
LAPSE:2026.0318
Synergistic integration of direct air capture in bioenergy systems
June 12, 2026
Abstract
The present work aims to demonstrate the synergy achieved through the integration of biomass gasification with a direct air capture (DAC) system to maximize overall CO2 removal capacity, while simultaneously converting waste into value-added products (hydrogen) and supplying the energy required for DAC operation (BG-H2P-DAC). The proposed configuration is modeled using Aspen Plus to investigate the synergistic interactions and key performance indicators of the BG-H2P-DAC system. Parametric analyses are conducted by varying gasification temperature, air inlet flow rate, and amine concentration and flow rate. The results indicate that increasing the monoethanolamine (MEA) concentration from 10% to 40% leads to a gradual decline in CO2 capture efficiency, accompanied by a reduction in CO2 slip. The system achieves a net specific electricity consumption of 0.0293 MWh/t CO2, confirming that the electricity generated from the integrated steam power cycle is sufficient to fully offset the electrical requirements of the DAC process. The regeneration heat requirement at a steam temperature of 150 °C is 1.32 MWh/t CO2, which represents the total net thermal demand of the DAC unit.
The present work aims to demonstrate the synergy achieved through the integration of biomass gasification with a direct air capture (DAC) system to maximize overall CO2 removal capacity, while simultaneously converting waste into value-added products (hydrogen) and supplying the energy required for DAC operation (BG-H2P-DAC). The proposed configuration is modeled using Aspen Plus to investigate the synergistic interactions and key performance indicators of the BG-H2P-DAC system. Parametric analyses are conducted by varying gasification temperature, air inlet flow rate, and amine concentration and flow rate. The results indicate that increasing the monoethanolamine (MEA) concentration from 10% to 40% leads to a gradual decline in CO2 capture efficiency, accompanied by a reduction in CO2 slip. The system achieves a net specific electricity consumption of 0.0293 MWh/t CO2, confirming that the electricity generated from the integrated steam power cycle is sufficient to fully offset the electrical requirements of the DAC process. The regeneration heat requirement at a steam temperature of 150 °C is 1.32 MWh/t CO2, which represents the total net thermal demand of the DAC unit.
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Jaafar NS, Manaf NA, Fadzil NFEN, Shah N. Synergistic integration of direct air capture in bioenergy systems. Systems and Control Transactions 5:927-933 (2026) https://doi.org/10.69997/sct.135980
Author Affiliations
Jaafar NS: Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
Manaf NA: Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia. Department of Chemical Engineering, Imperial College London, SW7 2AZ, United Kingdom [ORCID]
Fadzil NFEN: Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
Shah N: Department of Chemical Engineering, Imperial College London, SW7 2AZ, United Kingdom [ORCID]
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Manaf NA: Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia. Department of Chemical Engineering, Imperial College London, SW7 2AZ, United Kingdom [ORCID]
Fadzil NFEN: Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
Shah N: Department of Chemical Engineering, Imperial College London, SW7 2AZ, United Kingdom [ORCID]
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Journal Name
Systems and Control Transactions
Volume
5
First Page
927
Last Page
933
Year
2026
Publication Date
2026-06-12
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Original Submission
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PII: 0927-0933-72-SCT-5-2026, Publication Type: Journal Article
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LAPSE:2026.0318
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LAPSE:2026.0037
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