Biological hydrogen methanation systems–an overview of design and efficiency
Supplementary file 1
Wall, David M.
Murphy, Jerry D.
Taylor and Francis Inc.
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.
Biological methanation , Biomethane , Hydrogenotrophic archaea , Hydrogen , Methane , Power to gas , Gas-liquid mass transfer coefficient
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
©2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.