A new methanation and membrane based power-to-gas process for the direct integration of raw biogas – Feasability and comparison

Florian Kirchbacher, Philipp Biegger, Martin Miltner, Markus Lehner and Michael Harasek

Energy, 2018, vol. 146, issue C, 34-46

Abstract: Storage options for increasing amounts of volatile energy supplied by renewable sources are of growing interest. One promising concept is power-to-gas, where electrical energy is transformed to gas that can be stored more easily. H2 produced by electrolysis powered by excess energy is combined with CO2 in a methanation to produce CH4. Possible CO2 sources are numerous, but biogas is special, as it is a renewable source itself and already contains CH4 concentrations of up to 60% v/v. Normally the CH4 needs to be removed prior to methanation, requiring two gas upgrading steps.

Keywords: Biogas; Upgrading; Methanation; Membrane; Power-to-gas (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (16)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:146:y:2018:i:c:p:34-46

DOI: 10.1016/j.energy.2017.05.026

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