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dc.contributor.authorSamarakoon, Gamunu
dc.contributor.authorDinamarca, Carlos
dc.contributor.authorNelabhotla, Anirudh B.T.
dc.contributor.authorWinkler, Dietmar
dc.contributor.authorBakke, Rune
dc.date.accessioned2020-01-27T08:16:56Z
dc.date.available2020-01-27T08:16:56Z
dc.date.issued2019
dc.identifier.isbn978-82-536-1646-9
dc.identifier.issn2387-4295
dc.identifier.urihttp://hdl.handle.net/11250/2637944
dc.description.abstractThe most common platform for biogas process modelling, ADM-1, was extended adding the bio-electrochemical active CO2 reduction to CH4 reaction. The Nernst expression was incorporated as Monod-type kinetic expression to formulate the reaction rate, which is controlled by the electrical potential. The proposed model is applied to a complete mixed separate cathode compartment running in a continuous flow mode of operation. The model modification is relatively simple, mainly as a learning tool focused on the differences between an AD process with and without a Bioelectrochemical system (BES). The simulations demonstrate the basic concepts of BES for biogas upgrade and its limitations. The simulations show that biogas methane content can be increased up to 85 % under the reactor settings selected for the simulations. The rate of the reduction reaction can be constrained by the local potential of the cathode and the substrate concentration. The necessity of maintaining some buffering from CO2 partial pressure to prevent the inhibition due to rise in pH is also pointed out. The simulations suggest that simultaneous bio methanation of CO2 from endogenous and external sources can be achieved using an AD with BES.
dc.language.isoeng
dc.publisherSINTEF Academic Press
dc.relation.ispartofProceedings of the 10th Trondheim Conference on CO2 Capture, Transport and Storage ; TCCS-10, 2019
dc.relation.ispartofseriesSINTEF Proceedings;4
dc.rightsCC BY NC ND
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectCO2 negative solutions
dc.subjectCCUS
dc.subjectCO2 utilisation
dc.subjectBES
dc.subjectBio-methane
dc.titleModelling Bio-Electrochemical CO2 Reduction to Methane
dc.typeChapter
dc.typeConference object
dc.typePeer reviewed
dc.description.versionpublishedVersion
dc.rights.holder© The authors. Published by SINTEF Academic Press 2019 This is an open access publication under the CC BY-NC-ND license
dc.subject.nsiVDP::Teknologi: 500
dc.identifier.cristin1775663


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