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Article

Biological CO2-Methanation: An Approach to Standardization

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Research Center on Energy Transmission and Energy Storage (FENES), Technical University of Applied Sciences OTH Regensburg, Seybothstrasse 2, 93053 Regensburg, Germany
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Chair for Energy Process Engineering, Friedrich-Alexander-University Erlangen-Nuremberg, Fuerther Strasse 244f, 90429 Nuremberg, Germany
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Electrochaea GmbH, Semmelweisstrasse 3, 82152 Planegg, Germany
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Institute of Microbiology and Archaea Center, University of Regensburg, Universitaetsstraße 31, 93053 Regenburg, Germany
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DVGW Research Centre at Engler-Bunte-Institute (EBI) of Karlsruhe Institute of Technology (KIT), Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
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MicrobEnergy GmbH, Bayernwerk 8, 92421 Schwandorf, Germany
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MicroPyros GmbH, Imhoffstr. 95, 94315 Straubing, Germany
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Westnetz GmbH, Florianstr. 15-21, 44139 Dortmund, Germany
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Author to whom correspondence should be addressed.
Contributed equally: Martin Thema, Tobias Weidlich, Manuel Hörl, Annett Bellack.
Energies 2019, 12(9), 1670; https://doi.org/10.3390/en12091670
Received: 22 March 2019 / Revised: 18 April 2019 / Accepted: 24 April 2019 / Published: 1 May 2019
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 technology. 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. View Full-Text
Keywords: methanation; standardization; biological methanation; CO2-methanation; power-to-gas; power-to-methane; trickle-bed reactor; CSTR; bubble column reactor; membrane reactor methanation; standardization; biological methanation; CO2-methanation; power-to-gas; power-to-methane; trickle-bed reactor; CSTR; bubble column reactor; membrane reactor
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MDPI and ACS Style

Thema, M.; Weidlich, T.; Hörl, M.; Bellack, A.; Mörs, F.; Hackl, F.; Kohlmayer, M.; Gleich, J.; Stabenau, C.; Trabold, T.; Neubert, M.; Ortloff, F.; Brotsack, R.; Schmack, D.; Huber, H.; Hafenbradl, D.; Karl, J.; Sterner, M. Biological CO2-Methanation: An Approach to Standardization. Energies 2019, 12, 1670. https://doi.org/10.3390/en12091670

AMA Style

Thema M, Weidlich T, Hörl M, Bellack A, Mörs F, Hackl F, Kohlmayer M, Gleich J, Stabenau C, Trabold T, Neubert M, Ortloff F, Brotsack R, Schmack D, Huber H, Hafenbradl D, Karl J, Sterner M. Biological CO2-Methanation: An Approach to Standardization. Energies. 2019; 12(9):1670. https://doi.org/10.3390/en12091670

Chicago/Turabian Style

Thema, Martin, Tobias Weidlich, Manuel Hörl, Annett Bellack, Friedemann Mörs, Florian Hackl, Matthias Kohlmayer, Jasmin Gleich, Carsten Stabenau, Thomas Trabold, Michael Neubert, Felix Ortloff, Raimund Brotsack, Doris Schmack, Harald Huber, Doris Hafenbradl, Jürgen Karl, and Michael Sterner. 2019. "Biological CO2-Methanation: An Approach to Standardization" Energies 12, no. 9: 1670. https://doi.org/10.3390/en12091670

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