2024-03-29T08:08:18Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/467752022-07-18T09:33:09Zcom_10324_35294com_10324_952com_10324_894col_10324_35295
Performance evaluation of a control strategy for photosynthetic biogas upgrading in a semi-industrial scale photobioreactor
Rodero Raya, María del Rosario
Carvajal, Andrea
Arbib, Zouhayr
Lara, Enrique
Prada Moraga, César de
Lebrero Fernández, Raquel
Muñoz Torre, Raúl
Biogás fotosintético
Algas - Bacterias
Semi-industrial
Photosynthetic biogas
Algal-bacterial
23 Química
33 Ciencias Tecnológicas
Producción Científica
The validation of a control strategy for biogas upgrading via light-driven CO2 consumption by microalgae and H2S oxidation by oxidizing bacteria using the oxygen photosynthetically generated was performed in a semi-industrial scale (9.6 m3) photobioreactor. The control system was able to support CO2 concentrations lower than 2% with O2 contents ≤ 1% regardless of the pH in the cultivation broth (ranging from 9.05 to 9.50). Moreover, the control system was efficient to cope with variations in biogas flowrate from 143 to 420 L h−1, resulting in a biomethane composition of CO2 < 2.4%, CH4 > 95.5%, O2 < 1% and no H2S. Despite the poor robustness of this technology against failures in biogas and liquid supply (CH4 concentration of 67.5 and 70.9% after 2 h of biogas or liquid stoppage, respectively), the control system was capable of restoring biomethane quality in less than 2 h when biogas or liquid supply was resumed.
Junta de Castilla y León y Programa Europeo FEDER (CLU 2017-09) y (UIC 071).
European Union’s Horizon 2020 research and innovation programme under grant agreement No. 689242
2021-06-07T09:11:41Z
2021-06-07T09:11:41Z
2020
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
https://doi.org/10.1016/j.biortech.2020.123207
Bioresource Technology, 2020, vol. 307, p. 123207
0960-8524
https://uvadoc.uva.es/handle/10324/46775
123207
Bioresource Technology
307
eng
https://www.sciencedirect.com/science/article/pii/S0960852420304788
info:eu-repo/grantAgreement/EC/H2020/68924
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
© 2020 Elsevier
application/pdf
Elsevier