Continuous biomethanation of flue gas-carbon dioxide using bio-integrated carbon capture and utilization

Jean M.S. Oliveira; Lars D.M. Ottosen; Michael V.W. Kofoed

doi:10.1016/j.biortech.2024.130506

Continuous biomethanation of flue gas-carbon dioxide using bio-integrated carbon capture and utilization

Jean M.S. Oliveira, Lars D.M. Ottosen, Michael V.W. Kofoed^*

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

Abstract

Biomethanation of carbon dioxide (CO₂) from flue gas is a potential enabler of the green transition, particularly when integrated with the power-to-gas chain. However, challenges arise in achieving synthetic natural gas quality when utilizing CO₂ from diluted carbon sources, and the high costs of CO₂ separation using amine-based solutions make large-scale implementation unfeasible. We propose an innovative continuous biomethanation system that integrates carbon capture and CO₂ stripping through microbial utilization, eliminating expenses with the stripper. Stable continuous biomethane production (83–92 % methane purity) was achieved from flue gas-CO₂ using a biocompatible aqueous n-methyldiethanolamine (MDEA) solution (50 mmol/L) under mesophilic and hydrogen-limiting conditions. MDEA was found to be recalcitrant to biodegradation and could be reused after regeneration. Demonstrating the microbial ability to simultaneously strip and convert the captured CO₂ and regenerate MDEA provides a new pathway for valorization of flue gas CO₂.

Original language	English
Article number	130506
Journal	Bioresource Technology
Volume	399
ISSN	0960-8524
DOIs	https://doi.org/10.1016/j.biortech.2024.130506
Publication status	Published - May 2024

Keywords

BICCU
Biomethane
CCU
Continuous reactor system
MDEA
N-methyldiethanolamine
Power-to-X
Carbon Dioxide/metabolism
Ethanolamines
3,4-Methylenedioxyamphetamine/analogs & derivatives
Natural Gas

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title = "Continuous biomethanation of flue gas-carbon dioxide using bio-integrated carbon capture and utilization",

abstract = "Biomethanation of carbon dioxide (CO2) from flue gas is a potential enabler of the green transition, particularly when integrated with the power-to-gas chain. However, challenges arise in achieving synthetic natural gas quality when utilizing CO2 from diluted carbon sources, and the high costs of CO2 separation using amine-based solutions make large-scale implementation unfeasible. We propose an innovative continuous biomethanation system that integrates carbon capture and CO2 stripping through microbial utilization, eliminating expenses with the stripper. Stable continuous biomethane production (83–92 % methane purity) was achieved from flue gas-CO2 using a biocompatible aqueous n-methyldiethanolamine (MDEA) solution (50 mmol/L) under mesophilic and hydrogen-limiting conditions. MDEA was found to be recalcitrant to biodegradation and could be reused after regeneration. Demonstrating the microbial ability to simultaneously strip and convert the captured CO2 and regenerate MDEA provides a new pathway for valorization of flue gas CO2.",

keywords = "BICCU, Biomethane, CCU, Continuous reactor system, MDEA, N-methyldiethanolamine, Power-to-X, Carbon Dioxide/metabolism, Ethanolamines, 3,4-Methylenedioxyamphetamine/analogs & derivatives, Natural Gas",

author = "Oliveira, {Jean M.S.} and Ottosen, {Lars D.M.} and Kofoed, {Michael V.W.}",

note = "Publisher Copyright: {\textcopyright} 2024 The Authors",

year = "2024",

month = may,

doi = "10.1016/j.biortech.2024.130506",

language = "English",

volume = "399",

journal = "Bioresource Technology",

issn = "0960-8524",

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Continuous biomethanation of flue gas-carbon dioxide using bio-integrated carbon capture and utilization. / Oliveira, Jean M.S.; Ottosen, Lars D.M.; Kofoed, Michael V.W.
In: Bioresource Technology, Vol. 399, 130506, 05.2024.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

TY - JOUR

T1 - Continuous biomethanation of flue gas-carbon dioxide using bio-integrated carbon capture and utilization

AU - Oliveira, Jean M.S.

AU - Ottosen, Lars D.M.

AU - Kofoed, Michael V.W.

PY - 2024/5

Y1 - 2024/5

N2 - Biomethanation of carbon dioxide (CO2) from flue gas is a potential enabler of the green transition, particularly when integrated with the power-to-gas chain. However, challenges arise in achieving synthetic natural gas quality when utilizing CO2 from diluted carbon sources, and the high costs of CO2 separation using amine-based solutions make large-scale implementation unfeasible. We propose an innovative continuous biomethanation system that integrates carbon capture and CO2 stripping through microbial utilization, eliminating expenses with the stripper. Stable continuous biomethane production (83–92 % methane purity) was achieved from flue gas-CO2 using a biocompatible aqueous n-methyldiethanolamine (MDEA) solution (50 mmol/L) under mesophilic and hydrogen-limiting conditions. MDEA was found to be recalcitrant to biodegradation and could be reused after regeneration. Demonstrating the microbial ability to simultaneously strip and convert the captured CO2 and regenerate MDEA provides a new pathway for valorization of flue gas CO2.

AB - Biomethanation of carbon dioxide (CO2) from flue gas is a potential enabler of the green transition, particularly when integrated with the power-to-gas chain. However, challenges arise in achieving synthetic natural gas quality when utilizing CO2 from diluted carbon sources, and the high costs of CO2 separation using amine-based solutions make large-scale implementation unfeasible. We propose an innovative continuous biomethanation system that integrates carbon capture and CO2 stripping through microbial utilization, eliminating expenses with the stripper. Stable continuous biomethane production (83–92 % methane purity) was achieved from flue gas-CO2 using a biocompatible aqueous n-methyldiethanolamine (MDEA) solution (50 mmol/L) under mesophilic and hydrogen-limiting conditions. MDEA was found to be recalcitrant to biodegradation and could be reused after regeneration. Demonstrating the microbial ability to simultaneously strip and convert the captured CO2 and regenerate MDEA provides a new pathway for valorization of flue gas CO2.

KW - BICCU

KW - Biomethane

KW - CCU

KW - Continuous reactor system

KW - MDEA

KW - N-methyldiethanolamine

KW - Power-to-X

KW - Carbon Dioxide/metabolism

KW - Ethanolamines

KW - 3,4-Methylenedioxyamphetamine/analogs & derivatives

KW - Natural Gas

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DO - 10.1016/j.biortech.2024.130506

M3 - Journal article

C2 - 38423486

AN - SCOPUS:85187783775

SN - 0960-8524

VL - 399

JO - Bioresource Technology

JF - Bioresource Technology

M1 - 130506

ER -

Continuous biomethanation of flue gas-carbon dioxide using bio-integrated carbon capture and utilization

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Keywords

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