Thema, Martin and Weidlich, Tobias and Kaul, Anja and Boellmann, Andrea and Huber, Harald and Bellack, Annett and Karl, Juergen and Sterner, Michael (2021) Optimized biological CO2-methanation with a pure culture of thermophilic methanogenic archaea in a trickle-bed reactor. BIORESOURCE TECHNOLOGY, 333: 125135. ISSN 0960-8524, 1873-2976
Full text not available from this repository. (Request a copy)Abstract
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 m3CH4 mg3h- 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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | POWER-TO-GAS; METHANOBACTERIUM-THERMOAUTOTROPHICUM; HYDROGENOTROPHIC COMMUNITY; BIOCATALYTIC METHANATION; CARBON-DIOXIDE; CH4 PRODUCTION; PERFORMANCE; H-2; CO2; Biological methanation; Trickle-bed reactor; Thermophilic archaea; Reactor concept; Power-to-Gas |
| Subjects: | 500 Science > 570 Life sciences 600 Technology > 600 Technology (Applied sciences) |
| Divisions: | Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Mikrobiologie (Archaeenzentrum) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Jul 2022 09:46 |
| Last Modified: | 05 Jul 2022 09:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/46033 |
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