• search hit 84 of 391
Back to Result List

Optimized biological CO2-methanation with a pure culture of thermophilic methanogenic archaea in a trickle-bed reactor

  • In this study, a fully automated process converting hydrogen and carbon dioxide to methane in a high temperature trickle-bed reactor was developed from lab scale to field test level. The reactor design and system performance was optimized to yield high methane content in the product gas for direct feed-in to the gas grid. The reaction was catalyzed by a pure culture of Methanothermobacter thermoautotrophicus IM5, which formed a biofilm on ceramic packing elements. During 600 h in continuous and semi-continuous operation in countercurrent flow, the 0.05 m3 reactor produced up to 95.3 % of methane at a methane production rate of 0.35 mCH43mR-3h-1. Adding nitrogen as carrier gas during startup, foam control and dosing of ammonium and sodium sulfide as nitrogen and sulfur source were important factors for process automation.

Export metadata

Additional Services

Share in Twitter Search Google Scholar Statistics
Metadaten
Author:Martin Thema, Tobias Weidlich, Anja Kaul, Andrea Böllmann, Harald Huber, Annett BellackORCiD, Jürgen Karl, Michael SternerORCiDGND
DOI:https://doi.org/10.1016/j.biortech.2021.125135
Parent Title (English):Bioresource Technology
Publisher:Elsevier
Document Type:Article
Language:English
Year of first Publication:2021
Release Date:2021/10/27
Tag:Biological methanation; Power-to-Gas; Reactor concept; Thermophilic archaea; Trickle-bed reactor
Issue:333
Article Number:125135
Institutes:Fakultät Elektro- und Informationstechnik
Fakultät Elektro- und Informationstechnik / Forschungsstelle für Energienetze und Energiespeicher (FENES) / Forschungsgruppe Energiespeicher
Begutachtungsstatus:peer-reviewed
research focus:Energie und Mobilität
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG