Estimation of particle concentration profiles in a three-phase fluidized bed from experimental data and using the wake model

Detalhes bibliográficos
Autor(a) principal: Knesebeck,A.
Data de Publicação: 2004
Outros Autores: Guardani,R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Chemical Engineering
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000100006
Resumo: Particles with a size distribution in the range of 34 to 468 µm were fluidized in a three-phase bed using low liquid and gas velocities. Particle size distribution and pressure profile measurements were carried out at different locations in the bed in order to study the influence of fluid velocities on segregation and dispersion of particles in different size classes. The influence of gas velocity on particle mixing was analyzed in terms of internal solid fluxes, calculated by means of the wake model. Based on the experimental results, different particle distribution patterns were identified. Although no significant tendencies were observed for radial profiles, particles of different sizes have significantly different axial profiles, which are mainly affected by the velocity of the liquid phase. Thus, depending on the liquid velocity, smaller particles reach a maximum concentration at different bed heights.
id ABEQ-1_013d1e1c5e1869145df3aaf3e0a2fe88
oai_identifier_str oai:scielo:S0104-66322004000100006
network_acronym_str ABEQ-1
network_name_str Brazilian Journal of Chemical Engineering
repository_id_str
spelling Estimation of particle concentration profiles in a three-phase fluidized bed from experimental data and using the wake modelthree-phase fluidizationparticle segregationwake modelParticles with a size distribution in the range of 34 to 468 µm were fluidized in a three-phase bed using low liquid and gas velocities. Particle size distribution and pressure profile measurements were carried out at different locations in the bed in order to study the influence of fluid velocities on segregation and dispersion of particles in different size classes. The influence of gas velocity on particle mixing was analyzed in terms of internal solid fluxes, calculated by means of the wake model. Based on the experimental results, different particle distribution patterns were identified. Although no significant tendencies were observed for radial profiles, particles of different sizes have significantly different axial profiles, which are mainly affected by the velocity of the liquid phase. Thus, depending on the liquid velocity, smaller particles reach a maximum concentration at different bed heights.Brazilian Society of Chemical Engineering2004-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000100006Brazilian Journal of Chemical Engineering v.21 n.1 2004reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322004000100006info:eu-repo/semantics/openAccessKnesebeck,A.Guardani,R.eng2004-01-15T00:00:00Zoai:scielo:S0104-66322004000100006Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2004-01-15T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Estimation of particle concentration profiles in a three-phase fluidized bed from experimental data and using the wake model
title Estimation of particle concentration profiles in a three-phase fluidized bed from experimental data and using the wake model
spellingShingle Estimation of particle concentration profiles in a three-phase fluidized bed from experimental data and using the wake model
Knesebeck,A.
three-phase fluidization
particle segregation
wake model
title_short Estimation of particle concentration profiles in a three-phase fluidized bed from experimental data and using the wake model
title_full Estimation of particle concentration profiles in a three-phase fluidized bed from experimental data and using the wake model
title_fullStr Estimation of particle concentration profiles in a three-phase fluidized bed from experimental data and using the wake model
title_full_unstemmed Estimation of particle concentration profiles in a three-phase fluidized bed from experimental data and using the wake model
title_sort Estimation of particle concentration profiles in a three-phase fluidized bed from experimental data and using the wake model
author Knesebeck,A.
author_facet Knesebeck,A.
Guardani,R.
author_role author
author2 Guardani,R.
author2_role author
dc.contributor.author.fl_str_mv Knesebeck,A.
Guardani,R.
dc.subject.por.fl_str_mv three-phase fluidization
particle segregation
wake model
topic three-phase fluidization
particle segregation
wake model
description Particles with a size distribution in the range of 34 to 468 µm were fluidized in a three-phase bed using low liquid and gas velocities. Particle size distribution and pressure profile measurements were carried out at different locations in the bed in order to study the influence of fluid velocities on segregation and dispersion of particles in different size classes. The influence of gas velocity on particle mixing was analyzed in terms of internal solid fluxes, calculated by means of the wake model. Based on the experimental results, different particle distribution patterns were identified. Although no significant tendencies were observed for radial profiles, particles of different sizes have significantly different axial profiles, which are mainly affected by the velocity of the liquid phase. Thus, depending on the liquid velocity, smaller particles reach a maximum concentration at different bed heights.
publishDate 2004
dc.date.none.fl_str_mv 2004-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000100006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000100006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322004000100006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv Brazilian Journal of Chemical Engineering v.21 n.1 2004
reponame:Brazilian Journal of Chemical Engineering
instname:Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
instname_str Associação Brasileira de Engenharia Química (ABEQ)
instacron_str ABEQ
institution ABEQ
reponame_str Brazilian Journal of Chemical Engineering
collection Brazilian Journal of Chemical Engineering
repository.name.fl_str_mv Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)
repository.mail.fl_str_mv rgiudici@usp.br||rgiudici@usp.br
_version_ 1754213171518767104

Registros relacionados