TY - JOUR
T1 - CO2 capture of the gas emission, using a catalytic converter and airlift bioreactors with the microalga Scenedesmus dimorphus
AU - Arroyo, Citlalli Adelaida
AU - Contreras, José Luis
AU - Zeifert, Beatriz
AU - Ramírez, C. Clementina
N1 - Publisher Copyright:
© 2019 by the authors.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - A process composed by a catalytic converter and three sequential Airlift photobioreactors containing the microalga Scenedesmus dimorphus was studied to capture CO2, NOx, and CO from emissions of a steam boiler which was burning diesel. The catalytic converter transformed to CO2 a maximum of 78% of the CO present in the combustion gas. The effects of shear rate, light intensity, and light/dark cycles on the biomass growth of the algae were studied. It was observed that at low shear rates (Re ≈ 3200), a high productivity of 0.29 gcel L-1 d-1 was obtained. When the microalga was exposed to 60.75 μmol·m-2·s-1 of intensity of light and a light/dark cycle of 16/8 h, a maximum productivity of 0.44 gcel L-1 d-1 and a maximum CO2 fixation rate 0.8 g CO2 L-1·d-1 were obtained. The maximum CO2 removal efficiency was 64.3%, and KLa for CO2 and O2 were 1.2 h-1 and 3.71 h-1 respectively.
AB - A process composed by a catalytic converter and three sequential Airlift photobioreactors containing the microalga Scenedesmus dimorphus was studied to capture CO2, NOx, and CO from emissions of a steam boiler which was burning diesel. The catalytic converter transformed to CO2 a maximum of 78% of the CO present in the combustion gas. The effects of shear rate, light intensity, and light/dark cycles on the biomass growth of the algae were studied. It was observed that at low shear rates (Re ≈ 3200), a high productivity of 0.29 gcel L-1 d-1 was obtained. When the microalga was exposed to 60.75 μmol·m-2·s-1 of intensity of light and a light/dark cycle of 16/8 h, a maximum productivity of 0.44 gcel L-1 d-1 and a maximum CO2 fixation rate 0.8 g CO2 L-1·d-1 were obtained. The maximum CO2 removal efficiency was 64.3%, and KLa for CO2 and O2 were 1.2 h-1 and 3.71 h-1 respectively.
KW - Airlift-bioreactor
KW - CO capture
KW - CO conversion
KW - Catalytic-converter
KW - Microalgae
KW - Scenedesmus dimorphus
UR - http://www.scopus.com/inward/record.url?scp=85070959129&partnerID=8YFLogxK
U2 - 10.3390/app9163212
DO - 10.3390/app9163212
M3 - Artículo
AN - SCOPUS:85070959129
SN - 2076-3417
VL - 9
JO - Applied Sciences (Switzerland)
JF - Applied Sciences (Switzerland)
IS - 16
M1 - 3212
ER -