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

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dc.contributor.author Deng, Chen
dc.contributor.author Lin, Richen
dc.contributor.author Kang, Xihui
dc.contributor.author Wu, Benteng
dc.contributor.author O'Shea, Richard
dc.contributor.author Murphy, Jerry D.
dc.date.accessioned 2020-07-02T12:52:01Z
dc.date.available 2020-07-02T12:52:01Z
dc.date.issued 2020-05-11
dc.identifier.citation Deng, 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.2020.109895 en
dc.identifier.volume 128 en
dc.identifier.startpage 1 en
dc.identifier.endpage 20 en
dc.identifier.issn 1364-0321
dc.identifier.uri http://hdl.handle.net/10468/10200
dc.identifier.doi 10.1016/j.rser.2020.109895 en
dc.description.abstract Advanced 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.sponsorship Science 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.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.uri http://www.sciencedirect.com/science/article/pii/S1364032120301878
dc.rights 2020 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.uri http://creativecommons.org/licenses/by/4.0 en
dc.subject Biomethane en
dc.subject Anaerobic digestion en
dc.subject Seaweed en
dc.subject Biochar en
dc.subject Pyrolysis en
dc.subject Cascading circular bioenergy system en
dc.title Improving gaseous biofuel yield from seaweed through a cascading circular bioenergy system integrating anaerobic digestion and pyrolysis en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Richen Lin, Environmental Research Institute, University College Cork, Cork, Ireland. +353-21-490-3000 Email: richen.lin@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2020-07-02T12:32:35Z
dc.description.version Published Version en
dc.internal.rssid 522472444
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder European Regional Development Fund en
dc.contributor.funder Interreg en
dc.contributor.funder Horizon 2020 en
dc.contributor.funder H2020 Marie Skłodowska-Curie Actions en
dc.contributor.funder Environmental Protection Agency en
dc.contributor.funder Environmental Protection Agency, Ireland en
dc.contributor.funder Gas Networks Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Renewable and Sustainable Energy Reviews en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress richen.lin@ucc.ie en
dc.internal.IRISemailaddress chen.deng@ucc.ie en
dc.internal.IRISemailaddress benteng.wu@ucc.ie en
dc.internal.IRISemailaddress richard.oshea@ucc.ie en
dc.internal.IRISemailaddress jerry.murphy@ucc.ie en
dc.identifier.articleid 109895 en
dc.relation.project info: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.project info: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/DIET en


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2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license. (http://creativecommons.org/licenses/by/4.0) Except where otherwise noted, this item's license is described as 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license. (http://creativecommons.org/licenses/by/4.0)
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