Thermodynamic efficiency of carbon capture and utilisation in anaerobic batch digestion process

Sungtaek Oh, Alastair Martin

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Carbon capture and storage (CCS) in the oil and water industries is becoming common and a significant consumer of energy typically requiring 150–450 °C and or several hundred bar pressure [1] particularly in geological deposition. A biological carbon capture and conversion has been considered in conventional anaerobic digestion processes. The process has been utilised in biological mixed culture, where acetoclastic bacteria and hydrogenophilic methanogens play a major key role in the utilisation of carbon dioxide. However, the bio catalytic microorganisms, hydrogenophilic methanogens are reported to be unstable with acetoclastic bacteria. In this work the biochemical thermodynamic efficiency was investigated for the stabilisation of the microbial process in carbon capture and utilisation. The authors observed that a thermodynamic efficiency of biological carbon capture and utilisation (BCCU) had 32% of overall reduction in yield of carbon dioxide with complimentary increase of 30% in yield of methane, while the process was overall endothermic. Total consumption of energy (≈0.33 MJ l−1) was estimated for the carbonate solubility (0.1 mol l−1) in batched BCCU. This has a major influence on microbial composition in the bioreactor. This thermodynamic study is an essential tool to aid the understanding of the interactions between operating parameters and the mixed microbial culture.
Original languageEnglish
Pages (from-to)182-193
Number of pages12
JournalJournal of CO2 Utilization
Volume16
DOIs
Publication statusPublished - 21 Jul 2016
Externally publishedYes

Fingerprint

Carbon capture
digestion
thermodynamics
Thermodynamics
Methanogens
carbon
Carbon Dioxide
Carbon dioxide
Bacteria
carbon dioxide
bacterium
Anaerobic digestion
water industry
Carbonates
Methane
Bioreactors
oil industry
Microorganisms
bioreactor
energy

Cite this

@article{4d3e911cdeab49d3a1c067c7bbebb416,
title = "Thermodynamic efficiency of carbon capture and utilisation in anaerobic batch digestion process",
abstract = "Carbon capture and storage (CCS) in the oil and water industries is becoming common and a significant consumer of energy typically requiring 150–450 °C and or several hundred bar pressure [1] particularly in geological deposition. A biological carbon capture and conversion has been considered in conventional anaerobic digestion processes. The process has been utilised in biological mixed culture, where acetoclastic bacteria and hydrogenophilic methanogens play a major key role in the utilisation of carbon dioxide. However, the bio catalytic microorganisms, hydrogenophilic methanogens are reported to be unstable with acetoclastic bacteria. In this work the biochemical thermodynamic efficiency was investigated for the stabilisation of the microbial process in carbon capture and utilisation. The authors observed that a thermodynamic efficiency of biological carbon capture and utilisation (BCCU) had 32{\%} of overall reduction in yield of carbon dioxide with complimentary increase of 30{\%} in yield of methane, while the process was overall endothermic. Total consumption of energy (≈0.33 MJ l−1) was estimated for the carbonate solubility (0.1 mol l−1) in batched BCCU. This has a major influence on microbial composition in the bioreactor. This thermodynamic study is an essential tool to aid the understanding of the interactions between operating parameters and the mixed microbial culture.",
author = "Sungtaek Oh and Alastair Martin",
year = "2016",
month = "7",
day = "21",
doi = "10.1016/j.jcou.2016.07.006",
language = "English",
volume = "16",
pages = "182--193",
journal = "Journal of CO2 Utilization",
issn = "2212-9820",
publisher = "Elsevier BV",

}

Thermodynamic efficiency of carbon capture and utilisation in anaerobic batch digestion process. / Oh, Sungtaek; Martin, Alastair.

In: Journal of CO2 Utilization, Vol. 16, 21.07.2016, p. 182-193.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Thermodynamic efficiency of carbon capture and utilisation in anaerobic batch digestion process

AU - Oh, Sungtaek

AU - Martin, Alastair

PY - 2016/7/21

Y1 - 2016/7/21

N2 - Carbon capture and storage (CCS) in the oil and water industries is becoming common and a significant consumer of energy typically requiring 150–450 °C and or several hundred bar pressure [1] particularly in geological deposition. A biological carbon capture and conversion has been considered in conventional anaerobic digestion processes. The process has been utilised in biological mixed culture, where acetoclastic bacteria and hydrogenophilic methanogens play a major key role in the utilisation of carbon dioxide. However, the bio catalytic microorganisms, hydrogenophilic methanogens are reported to be unstable with acetoclastic bacteria. In this work the biochemical thermodynamic efficiency was investigated for the stabilisation of the microbial process in carbon capture and utilisation. The authors observed that a thermodynamic efficiency of biological carbon capture and utilisation (BCCU) had 32% of overall reduction in yield of carbon dioxide with complimentary increase of 30% in yield of methane, while the process was overall endothermic. Total consumption of energy (≈0.33 MJ l−1) was estimated for the carbonate solubility (0.1 mol l−1) in batched BCCU. This has a major influence on microbial composition in the bioreactor. This thermodynamic study is an essential tool to aid the understanding of the interactions between operating parameters and the mixed microbial culture.

AB - Carbon capture and storage (CCS) in the oil and water industries is becoming common and a significant consumer of energy typically requiring 150–450 °C and or several hundred bar pressure [1] particularly in geological deposition. A biological carbon capture and conversion has been considered in conventional anaerobic digestion processes. The process has been utilised in biological mixed culture, where acetoclastic bacteria and hydrogenophilic methanogens play a major key role in the utilisation of carbon dioxide. However, the bio catalytic microorganisms, hydrogenophilic methanogens are reported to be unstable with acetoclastic bacteria. In this work the biochemical thermodynamic efficiency was investigated for the stabilisation of the microbial process in carbon capture and utilisation. The authors observed that a thermodynamic efficiency of biological carbon capture and utilisation (BCCU) had 32% of overall reduction in yield of carbon dioxide with complimentary increase of 30% in yield of methane, while the process was overall endothermic. Total consumption of energy (≈0.33 MJ l−1) was estimated for the carbonate solubility (0.1 mol l−1) in batched BCCU. This has a major influence on microbial composition in the bioreactor. This thermodynamic study is an essential tool to aid the understanding of the interactions between operating parameters and the mixed microbial culture.

U2 - 10.1016/j.jcou.2016.07.006

DO - 10.1016/j.jcou.2016.07.006

M3 - Article

VL - 16

SP - 182

EP - 193

JO - Journal of CO2 Utilization

JF - Journal of CO2 Utilization

SN - 2212-9820

ER -