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Energies 2018, 11(7), 1679; https://doi.org/10.3390/en11071679

Development of Honeycomb Methanation Catalyst and Its Application in Power to Gas Systems

1
Montanuniversitaet Leoben, Chair of Process Technology and Industrial Environmental Protection, Franz-Josef-Strasse 18, 8700 Leoben, Austria
2
Institute of Chemical, Environmental and Bioscience Engineering, Vienna University of Technology, Getreidemarkt 9/166, 1060 Vienna, Austria
*
Author to whom correspondence should be addressed.
Received: 30 May 2018 / Revised: 18 June 2018 / Accepted: 20 June 2018 / Published: 27 June 2018
(This article belongs to the Special Issue Power-to-Gas Energy Storage Technologies)
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Abstract

Fluctuating energy sources require enhanced energy storage demand, in order to ensure safe energy supply. Power to gas offers a promising pathway for energy storage in existing natural gas infrastructure, if valid regulations are met. To improve interaction between energy supply and storage, a flexible power to gas process is necessary. An innovative multibed methanation concept, based on ceramic honeycomb catalysts combined with polyimide membrane gas upgrading, is presented in this study. Cordierite monoliths are coated with γ-Al2O3 and catalytically active nickel, and used in a two-stage methanation process at different operation conditions (p = 6–14 bar, GHSV = 3000–6000 h−1). To fulfill the requirements of the Austrian natural gas network, the product gas must achieve a CH4 content of ≥96 vol %. Hence, CH4 rich gas from methanation is fed to the subsequent gas upgrading unit, to separate remaining H2 and CO2. In the present study, two different membrane modules were investigated. The results of methanation and gas separation clearly indicate the high potential of the presented process. At preferred operation conditions, target concentration of 96 vol % CH4 can be achieved. View Full-Text
Keywords: power to gas; methanation; membrane gas upgrading; energy storage; honeycomb catalyst power to gas; methanation; membrane gas upgrading; energy storage; honeycomb catalyst
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Biegger, P.; Kirchbacher, F.; Medved, A.R.; Miltner, M.; Lehner, M.; Harasek, M. Development of Honeycomb Methanation Catalyst and Its Application in Power to Gas Systems. Energies 2018, 11, 1679.

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