Continuous Biological Ex Situ Methanation of CO2 and H2 in a Novel Inverse Membrane Reactor (IMR)
- A promising approach for carbon dioxide (CO2) valorization and storing excess electricity is the biological methanation of hydrogen and carbon dioxide to methane. The primary challenge here is to supply sufficient quantities of dissolved hydrogen. The newly developed Inverse Membrane Reactor (IMR) allows for the spatial separation of the required reactant gases, hydrogen (H2) and carbon dioxideA promising approach for carbon dioxide (CO2) valorization and storing excess electricity is the biological methanation of hydrogen and carbon dioxide to methane. The primary challenge here is to supply sufficient quantities of dissolved hydrogen. The newly developed Inverse Membrane Reactor (IMR) allows for the spatial separation of the required reactant gases, hydrogen (H2) and carbon dioxide (CO2), and the degassing area for methane (CH4) output through commercially available ultrafiltration membranes, enabling a reactor design as a closed circuit for continuous methane production. In addition, the Inverse Membrane Reactor (IMR) facilitates the utilization of hydraulic pressure to enhance hydrogen (H2) input. One of the process’s advantages is the potential to utilize both carbon dioxide (CO2) from conventional biogas and CO2-rich industrial waste gas streams. An outstanding result from investigating the IMR revealed that, employing the membrane gassing concept, methane concentrations of over 90 vol.% could be consistently achieved through flexible gas input over a one-year test series. Following startup, only three supplemental nutrient additions were required in addition to hydrogen (H2) and carbon dioxide (CO2), which served as energy and carbon sources, respectively. The maximum achieved methane formation rate specific to membrane area was 87.7 LN of methane per m2 of membrane area per day at a product gas composition of 94 vol.% methane, 2 vol.% H2, and 4 vol.% CO2.…
Document Type: | Article (reviewed) |
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Zitierlink: | https://opus.hs-offenburg.de/9691 | Bibliografische Angaben |
Title (English): | Continuous Biological Ex Situ Methanation of CO2 and H2 in a Novel Inverse Membrane Reactor (IMR) |
Author: | Fabian HaitzStaff MemberORCiDGND, Oliver Jochum, Agnieszka Lasota, André Friedrich, Markus Bieri, Marc Stalder, Martin Schaub, Ulrich HochbergStaff MemberGND, Christiane ZellStaff MemberGND |
Year of Publication: | 2024 |
Date of first Publication: | 2024/10/21 |
Place of publication: | Basel |
Publisher: | MDPI |
First Page: | 1 |
Last Page: | 18 |
Article Number: | 2305 |
Parent Title (English): | Processes |
Editor: | Paul A. Scherer, Richard Arthur |
Volume: | 12 |
Issue: | 10 |
ISSN: | 2227-9717 |
DOI: | https://doi.org/10.3390/pr12102305 |
Language: | English | Inhaltliche Informationen |
Institutes: | Fakultät Maschinenbau und Verfahrenstechnik (M+V) |
Collections of the Offenburg University: | Bibliografie |
Tag: | biogas; biological ex situ methanation; energy storage; hydrogen; membrane bioreactor; power to gas | Formale Angaben |
Relevance for "Jahresbericht über Forschungsleistungen": | Wiss. Zeitschriftenartikel reviewed: Listung in Master Journal List |
Open Access: | Open Access |
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Licence (German): | Creative Commons - CC BY - Namensnennung 4.0 International |