Numerical study of integrated biomass pyrolysis and CO2 reforming for carbon sequestration and syngas production
Larsson, Andreas ; Brackmann, Christian LU ; Ragucci, Raffaele ; de Joannon, Mara and Fatehi, Hesameddin LU
(2025)
In Biomass and Bioenergy
202.
- Abstract
This study explores a novel approach to utilizing waste biomass for syngas production, with the potential for carbon sequestration. An integrated biomass conversion process combining pyrolysis, CO2 reforming, and MILD combustion is proposed. In the proposed system, the bio-oil obtained from pyrolysis can be used in a reforming step, converting it into syngas with a suitable H2/CO ratio for chemical synthesis or fuel production. The produced biochar provides a porous carbon material that can be further upgraded through CO2 activation and, used as fertilizer through nitrogen uptake. Lastly, the valorization of the low-calorific pyrolysis gas is achieved in a state-of-the-art MILD combustion technology,... (More)
This study explores a novel approach to utilizing waste biomass for syngas production, with the potential for carbon sequestration. An integrated biomass conversion process combining pyrolysis, CO2 reforming, and MILD combustion is proposed. In the proposed system, the bio-oil obtained from pyrolysis can be used in a reforming step, converting it into syngas with a suitable H2/CO ratio for chemical synthesis or fuel production. The produced biochar provides a porous carbon material that can be further upgraded through CO2 activation and, used as fertilizer through nitrogen uptake. Lastly, the valorization of the low-calorific pyrolysis gas is achieved in a state-of-the-art MILD combustion technology, generating energy for other processes in the system. A numerical model of the process is developed to evaluate the impact of the process on the carbon cycle, analyze energy and carbon flows throughout the process, and optimize operational conditions to maximize syngas production. A cold gas efficiency of 81.4% can be achieved in the process. The results indicate that up to 27.4% of the carbon going into the process can be successfully sequestered. Moreover, a combined steam and CO2 reforming process has been shown to be beneficial for syngas yield and sequestration of carbon. The results show that sufficient energy is generated in the MILD combustion for other processes within the system; however, it is possible to introduce renewable resources, such as incorporating an electrolyzer in the system, to enhance efficiency and syngas yield.
(Less)
- author
- Larsson, Andreas
; Brackmann, Christian
LU
; Ragucci, Raffaele
; de Joannon, Mara
and Fatehi, Hesameddin
LU
- organization
- publishing date
- 2025-11
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Biochar, Biomass, Carbon sequestration, MILD combustion, Process integration, Syngas
- in
- Biomass and Bioenergy
- volume
- 202
- article number
- 108241
- publisher
- Elsevier
- external identifiers
-
- scopus:105012585529
- ISSN
- 0961-9534
- DOI
- 10.1016/j.biombioe.2025.108241
- language
- English
- LU publication?
- yes
- id
- 456fbc81-17fd-4111-bb9f-9351f026d68d
- date added to LUP
- 2025-10-29 10:27:35
- date last changed
- 2025-10-29 10:31:38
@article{456fbc81-17fd-4111-bb9f-9351f026d68d,
abstract = {{<p>This study explores a novel approach to utilizing waste biomass for syngas production, with the potential for carbon sequestration. An integrated biomass conversion process combining pyrolysis, CO<sub>2</sub> reforming, and MILD combustion is proposed. In the proposed system, the bio-oil obtained from pyrolysis can be used in a reforming step, converting it into syngas with a suitable H<sub>2</sub>/CO ratio for chemical synthesis or fuel production. The produced biochar provides a porous carbon material that can be further upgraded through CO<sub>2</sub> activation and, used as fertilizer through nitrogen uptake. Lastly, the valorization of the low-calorific pyrolysis gas is achieved in a state-of-the-art MILD combustion technology, generating energy for other processes in the system. A numerical model of the process is developed to evaluate the impact of the process on the carbon cycle, analyze energy and carbon flows throughout the process, and optimize operational conditions to maximize syngas production. A cold gas efficiency of 81.4% can be achieved in the process. The results indicate that up to 27.4% of the carbon going into the process can be successfully sequestered. Moreover, a combined steam and CO<sub>2</sub> reforming process has been shown to be beneficial for syngas yield and sequestration of carbon. The results show that sufficient energy is generated in the MILD combustion for other processes within the system; however, it is possible to introduce renewable resources, such as incorporating an electrolyzer in the system, to enhance efficiency and syngas yield.</p>}},
author = {{Larsson, Andreas and Brackmann, Christian and Ragucci, Raffaele and de Joannon, Mara and Fatehi, Hesameddin}},
issn = {{0961-9534}},
keywords = {{Biochar; Biomass; Carbon sequestration; MILD combustion; Process integration; Syngas}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{Biomass and Bioenergy}},
title = {{Numerical study of integrated biomass pyrolysis and CO<sub>2</sub> reforming for carbon sequestration and syngas production}},
url = {{http://dx.doi.org/10.1016/j.biombioe.2025.108241}},
doi = {{10.1016/j.biombioe.2025.108241}},
volume = {{202}},
year = {{2025}},
}