RT info:eu-repo/semantics/article
T1 Performance evaluation of a control strategy for photosynthetic biogas upgrading in a semi-industrial scale photobioreactor
A1 Rodero Raya, María del Rosario
A1 Carvajal, Andrea
A1 Arbib, Zouhayr
A1 Lara, Enrique
A1 Prada Moraga, César de
A1 Lebrero Fernández, Raquel
A1 Muñoz Torre, Raúl
K1 Biogás fotosintético
K1 Algas - Bacterias
K1 Semi-industrial
K1 Photosynthetic biogas
K1 Algal-bacterial
K1 23 Química
K1 33 Ciencias Tecnológicas
AB 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.
PB Elsevier
SN 0960-8524
YR 2020
FD 2020
LK https://uvadoc.uva.es/handle/10324/46775
UL https://uvadoc.uva.es/handle/10324/46775
LA eng
NO Bioresource Technology, 2020, vol. 307, p. 123207
NO Producción Científica
DS UVaDOC
RD 26-abr-2024