Improving gaseous biofuel yield from seaweed through a cascading circular bioenergy system integrating anaerobic digestion and pyrolysis

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dc.contributor.authorDeng, Chen
dc.contributor.authorLin, Richen
dc.contributor.authorKang, Xihui
dc.contributor.authorWu, Benteng
dc.contributor.authorO'Shea, Richard
dc.contributor.authorMurphy, Jerry D.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderEuropean Regional Development Funden
dc.contributor.funderInterregen
dc.contributor.funderHorizon 2020en
dc.contributor.funderH2020 Marie Skłodowska-Curie Actionsen
dc.contributor.funderEnvironmental Protection Agencyen
dc.contributor.funderEnvironmental Protection Agency, Irelanden
dc.contributor.funderGas Networks Irelanden
dc.date.accessioned2020-07-02T12:52:01Z
dc.date.available2020-07-02T12:52:01Z
dc.date.issued2020-05-11
dc.date.updated2020-07-02T12:32:35Z
dc.description.abstractAdvanced biofuels include biomass sources free from land use such as seaweed. Seaweed biomethane may contribute significantly to a climate-neutral transport future; however, seaweed has limited biodegradability via anaerobic digestion (AD). To address this issue, the authors proposed a cascading circular bioenergy system incorporating pyrolysis (Py) for production of biochar, syngas and bio-oil, with the primary use of biochar in AD to promote biomethane production through direct interspecies electron transfer. The feasibility of the proposed AD-Py system was demonstrated by integrating a seaweed-based AD and a residue-based Py system to enhance advanced biofuels production. The AD results showed biochar achieved comparable performances to high-cost graphene in terms of enhancing biomethane production from seaweed. When digesting Laminaria digitata (common kelp), optimal biochar addition at 1/4 (biochar mass: volatile solid of seaweed) increased biomethane yield by 17% and peak production rate by 29% with accelerated volatile fatty acids conversion during AD. When digesting Saccharina latissima (sugar kelp), biomethane yield increased by 16% with optimal biochar addition. A mass and energy balance analysis indicated that processing 1.000 t of Laminaria digitata in AD, combustion of syngas and surplus biochar (in excess of biochar added in AD) from Py of 1.254 t forest residue and 0.078 t dried digestate could fulfil all the heat demand for the integrated AD-Py system. The process integration increased biomethane yield by 17% and bio-oil yield by 10%. Furthermore, a 26% decrease in digestate mass flow could be achieved, thereby reducing the demand for agricultural land for digestate application.en
dc.description.sponsorshipScience Foundation Ireland (SFI through the Centre for Energy, Climate, Marine (MaREI) under Grant No. 12/RC/ 2302_P2 and 16/SP/3829); European Regional Development Fund (under the Interreg NWE Project BioWILL (No. NWE 964)); Environmental Protection Agency, Ireland (2018-RE-MS-13); Gas Networks Ireland ( Industrial co-funding through the Gas Innovation Group)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid109895en
dc.identifier.citationDeng, C., Lin, Ri., Kang, X., Wu, B., O'Shea, R. and Murphy, Jerry D. (2020) 'Improving gaseous biofuel yield from seaweed through a cascading circular bioenergy system integrating anaerobic digestion and pyrolysis', Renewable and Sustainable Energy Reviews, 128, 109895 (20 pp). doi: 10.1016/j.rser.2020.109895en
dc.identifier.doi10.1016/j.rser.2020.109895en
dc.identifier.endpage20en
dc.identifier.issn1364-0321
dc.identifier.journaltitleRenewable and Sustainable Energy Reviewsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/10200
dc.identifier.volume128en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2302/IE/Marine Renewable Energy Ireland (MaREI) - The SFI Centre for Marine Renewable Energy Research/en
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::MSCA-IF-EF-ST/797259/EU/Direct Interspecies Electron Transfer in advanced anaerobic digestion system for gaseous transport biofuel production/DIETen
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S1364032120301878
dc.rights2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license. (http://creativecommons.org/licenses/by/4.0)en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0en
dc.subjectBiomethaneen
dc.subjectAnaerobic digestionen
dc.subjectSeaweeden
dc.subjectBiocharen
dc.subjectPyrolysisen
dc.subjectCascading circular bioenergy systemen
dc.titleImproving gaseous biofuel yield from seaweed through a cascading circular bioenergy system integrating anaerobic digestion and pyrolysisen
dc.typeArticle (peer-reviewed)en
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