2024-03-29T13:42:58Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/468732022-07-18T09:33:10Zcom_10324_35294com_10324_952com_10324_894col_10324_35295
Marín de Jesús, David Fernando
Carmona Martínez, Alessandro A.
Lebrero Fernández, Raquel
Muñoz Torre, Raúl
2021-06-15T12:33:27Z
2021-06-15T12:33:27Z
2020
Fuel, 2020, vol. 275, p. 117999
0016-2361
https://uvadoc.uva.es/handle/10324/46873
10.1016/j.fuel.2020.117999
117999
Fuel
275
Four different types of biogas diffusers (metallic of 2 µm, porous stone, and two ceramic membranes of 0.2 and 0.4 µm) were evaluated to improve the quality of biomethane in an outdoor pilot scale photobioreactor interconnected to an external biogas absorption unit. Each type of diffuser was tested independently using three different liquid to biogas (L/G) ratios (0.5, 1 and 2). No significant difference was recorded in the CH4 concentrations of biomethane (i.e. > 93.0%) working with the different types of diffusers at L/G ratios > 1. Only the metallic biogas diffuser supported CH4 concentrations higher than 94.0% at a L/G ratio of 0.5. The increase in L/G ratio induced the stripping of the dissolved N2 and O2 into the biogas, which compensated the decrease in CO2 concentration mediated by the higher pH value of the scrubbing solution. The ANOVA of the results here obtained confirmed that both the type of biogas diffuser and the L/G ratio significantly determined the quality of the upgraded biogas.
eng
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
© 2020 Elsevier
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Influence of the diffuser type and liquid-to-biogas ratio on biogas upgrading performance in an outdoor pilot scale high rate algal pond
info:eu-repo/semantics/article