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TitleHydrodynamics of a three-phase external-loop airlift bioreactor
Author(s)Freitas, Carla Maria Duarte de
Fialová, Maria
Zahradnik, Jindrich
Teixeira, J. A.
KeywordsMultiphase reactor
Mathematical model
Distributing plate
Solid phase
Issue date2000
JournalChemical Engineering Science
Citation“Chemical engineering science”. 55:21 (2000) 4961-4972.
Series/Report no.2000;14
Abstract(s)The effect of the distributing plate orifice diameter, airflow rate, solids loading and solids density on the hydrodynamic characteristics - gas holdup, circulation time and liquid velocity - of a three-phase external-loop airlift reactor was characterized. It was observed that the gas distributor has a small effect on riser gas holdup, circulation time and downcomer liquid velocity. On the contrary, the airflow rate, solids loading and solids density significantly affect the hydrodynamic characteristics of the external-loop airlift reactor. A previously described model was used to estimate simultaneously both the riser gas holdup and the downcomer linear liquid velocity. The model simulated with high-accuracy experimental data obtained with three different distributing plate orifice diameters, two solids density and solids loading up to 30% (v/v).
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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