Hydrodynamics of a three-phase external-loop airlift bioreactor

Detalhes bibliográficos
Autor(a) principal: Freitas, Carla Maria Duarte de
Data de Publicação: 2000
Outros Autores: Fialová, Maria, Zahradnik, Jindrich, Teixeira, J. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/1084
Resumo: 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).
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spelling Hydrodynamics of a three-phase external-loop airlift bioreactorMultiphase reactorHydrodynamicsMathematical modelDistributing plateSolid phaseScience & TechnologyThe 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).Fundação para a Ciência e a Tecnologia (FCT) – PRAXIS/2/2.1/BIO/1061/95.Comunidade Europeia - INCO-COPERNICUS - Contract Nº ERB IC15-CT-98-0904 e Instituto de Biotecnologia e Química Fina (IBQF) - GGP XXI/BD/2937/96.ElsevierUniversidade do MinhoFreitas, Carla Maria Duarte deFialová, MariaZahradnik, JindrichTeixeira, J. A.20002000-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/1084eng“Chemical engineering science”. 55:21 (2000) 4961-4972.0009-250910.1016/S0009-2509(00)00130-5info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T11:55:40Zoai:repositorium.sdum.uminho.pt:1822/1084Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:45:13.233624Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Hydrodynamics of a three-phase external-loop airlift bioreactor
title Hydrodynamics of a three-phase external-loop airlift bioreactor
spellingShingle Hydrodynamics of a three-phase external-loop airlift bioreactor
Freitas, Carla Maria Duarte de
Multiphase reactor
Hydrodynamics
Mathematical model
Distributing plate
Solid phase
Science & Technology
title_short Hydrodynamics of a three-phase external-loop airlift bioreactor
title_full Hydrodynamics of a three-phase external-loop airlift bioreactor
title_fullStr Hydrodynamics of a three-phase external-loop airlift bioreactor
title_full_unstemmed Hydrodynamics of a three-phase external-loop airlift bioreactor
title_sort Hydrodynamics of a three-phase external-loop airlift bioreactor
author Freitas, Carla Maria Duarte de
author_facet Freitas, Carla Maria Duarte de
Fialová, Maria
Zahradnik, Jindrich
Teixeira, J. A.
author_role author
author2 Fialová, Maria
Zahradnik, Jindrich
Teixeira, J. A.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Freitas, Carla Maria Duarte de
Fialová, Maria
Zahradnik, Jindrich
Teixeira, J. A.
dc.subject.por.fl_str_mv Multiphase reactor
Hydrodynamics
Mathematical model
Distributing plate
Solid phase
Science & Technology
topic Multiphase reactor
Hydrodynamics
Mathematical model
Distributing plate
Solid phase
Science & Technology
description 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).
publishDate 2000
dc.date.none.fl_str_mv 2000
2000-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/1084
url http://hdl.handle.net/1822/1084
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv “Chemical engineering science”. 55:21 (2000) 4961-4972.
0009-2509
10.1016/S0009-2509(00)00130-5
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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