Biological hydrogen methanation systems–an overview of design and efficiency
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Supplementary file 1
Date
2019-11-03
Authors
Rusmanis, Davis
O'Shea, Richard
Wall, David M.
Murphy, Jerry D.
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor and Francis Inc.
Published Version
Abstract
The rise in intermittent renewable electricity production presents a global requirement for energy storage. Biological hydrogen methanation (BHM) facilitates wind and solar energy through the storage of otherwise curtailed or constrained electricity in the form of the gaseous energy vector biomethane. Biological methanation in the circular economy involves the reaction of hydrogen – produced during electrolysis – with carbon dioxide in biogas to produce methane (4H2 + CO2 = CH4 + 2H2), typically increasing the methane output of the biogas system by 70%. In this paper, several BHM systems were researched and a compilation of such systems was synthesized, facilitating comparison of key parameters such as methane evolution rate (MER) and retention time. Increased retention times were suggested to be related to less efficient systems with long travel paths for gases through reactors. A significant lack of information on gas-liquid transfer co-efficient was identified.
Description
Keywords
Biological methanation , Biomethane , Hydrogenotrophic archaea , Hydrogen , Methane , Power to gas , Gas-liquid mass transfer coefficient
Citation
Rusmanis, D., O’Shea, R., Wall, D. M. and Murphy, J. D. (2019) 'Biological hydrogen methanation systems – an overview of design and efficiency', Bioengineered, 10(1), pp. 604-634. doi: 10.1080/21655979.2019.1684607