How to optimise photosynthetic biogas upgrading: a perspective on system design and microalgae selection

dc.check.date2020-08-30
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisher.en
dc.contributor.authorBose, Archishman
dc.contributor.authorLin, Richen
dc.contributor.authorRajendran, Karthik
dc.contributor.authorO'Shea, Richard
dc.contributor.authorXia, Ao
dc.contributor.authorMurphy, Jerry D.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderGas Networks Irelanden
dc.contributor.funderHorizon 2020en
dc.contributor.funderEnvironmental Protection Agencyen
dc.contributor.funderNational Natural Science Foundation of Chinaen
dc.date.accessioned2020-05-14T14:47:40Z
dc.date.available2020-05-14T14:47:40Z
dc.date.issued2019-08-30
dc.date.updated2020-05-14T14:31:09Z
dc.description.abstractPhotosynthetic biogas upgrading using microalgae provides a promising alternative to commercial upgrading processes as it allows for carbon capture and re-use, improving the sustainability of the process in a circular economy system. A two-step absorption column-photobioreactor system employing alkaline carbonate solution and flat plate photobioreactors is proposed. Together with process optimisation, the choice of microalgae species is vital to ensure continuous performance with optimal efficiency. In this paper, in addition to critically assessing the system design and operation conditions for optimisation, five criteria are selected for choosing optimal microalgae species for biogas upgrading. These include: ability for mixotrophic growth; high pH tolerance; external carbonic anhydrase activity; high CO2 tolerance; and ease of harvesting. Based on such criteria, five common microalgae species were identified as potential candidates. Of these, Spirulina platensis is deemed the most favourable species. An industrial perspective of the technology further reveals the significant challenges for successful commercial application of microalgal upgrading of biogas, including: a significant land footprint; need for decreasing microalgae solution recirculation rate; and selecting preferable microalgae utilisation pathway.en
dc.description.sponsorshipScience Foundation Ireland (SFI through the Centre for Marine and Renewable Energy (MaREI) under Grant Number 12/RC/2302 and 16/SP/3829); Gas Networks Ireland (industrial funding from through The Green Gas Innovation Group and by ERVIA); Environmental Protection Agency, Ireland (2018-RE-MS-13); National Science Foundation for Young Scientists of China (Grant No. 51606021)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid107444en
dc.identifier.citationBose, A., Lin, R., Rajendran, K., O'Shea, Ri., Xia, A. and Murphy, J. D. (2019) 'How to optimise photosynthetic biogas upgrading: a perspective on system design and microalgae selection', Biotechnology Advances, 37(8), 107444 (21 pp). doi: 10.1016/j.biotechadv.2019.107444en
dc.identifier.doi10.1016/j.biotechadv.2019.107444en
dc.identifier.endpage21en
dc.identifier.issn0734-9750
dc.identifier.issued8en
dc.identifier.journaltitleBiotechnology Advancesen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/9954
dc.identifier.volume37en
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.urihttps://www.sciencedirect.com/science/article/abs/pii/S0734975019301442
dc.rights© 2019 Elsevier Inc. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectBiogas upgradingen
dc.subjectBiomethaneen
dc.subjectCO capture and reuse 2en
dc.subjectMicroalgaeen
dc.subjectPhotobioreactorsen
dc.titleHow to optimise photosynthetic biogas upgrading: a perspective on system design and microalgae selectionen
dc.typeArticle (peer-reviewed)en
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