Biological CO2-Methanation: An Approach to Standardization

Martin Thema, Tobias Weidlich, Manuel Hörl, Annett Bellack, Friedemann Mörs, Florian Hackl, Matthias Kohlmayer, Jasmin Gleich, Carsten Stabenau, Thomas Trabold, Michael Neubert, Felix Ortloff (+6 others)
2019 Energies  
Power-to-Methane as one part of Power-to-Gas has been recognized globally as one of the key elements for the transition towards a sustainable energy system. While plants that produce methane catalytically have been in operation for a long time, biological methanation has just reached industrial pilot scale and near-term commercial application. The growing importance of the biological method is reflected by an increasing number of scientific articles describing novel approaches to improve this
more » ... chnology. However, these studies are difficult to compare because they lack a coherent nomenclature. In this article, we present a comprehensive set of parameters allowing the characterization and comparison of various biological methanation processes. To identify relevant parameters needed for a proper description of this technology, we summarized existing literature and defined system boundaries for Power-to-Methane process steps. On this basis, we derive system parameters providing information on the methanation system, its performance, the biology and cost aspects. As a result, three different standards are provided as a blueprint matrix for use in academia and industry applicable to both, biological and catalytic methanation. Hence, this review attempts to set the standards for a comprehensive description of biological and chemical methanation processes.
doi:10.3390/en12091670 fatcat:iig2fj752beonhmpz6i3gk4dxi