Prediction of mass transfer coefficients in a pulsed packed extraction column using effective diffusivity

Detalhes bibliográficos
Autor(a) principal: Torab-Mostaedi,M.
Data de Publicação: 2009
Outros Autores: Safdari,J.
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=S0104-66322009000400007
Resumo: The volumetric overall mass transfer coefficients have been measured in a pulsed packed extraction column using diffusion model for two different liquid-liquid systems. The effects of operational variables such as pulsation intensity and dispersed and continuous phase flow rates on volumetric overall mass transfer coefficients have been investigated. Effective diffusivity is substituted for molecular diffusivity in the Gröber equation for prediction of dispersed phase overall mass transfer coefficients. The enhancement factor is determined experimentally and therefrom an empirical correlation is derived for prediction of effective diffusivity as a function of Reynolds number, Schmidt number and viscosity ratio. Good agreement between prediction and experiments was found for all operating conditions that were investigated.
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spelling Prediction of mass transfer coefficients in a pulsed packed extraction column using effective diffusivityPulsed packed columnMass transfer coefficientAxial diffusion modelEnhancement factorEffective diffusivityThe volumetric overall mass transfer coefficients have been measured in a pulsed packed extraction column using diffusion model for two different liquid-liquid systems. The effects of operational variables such as pulsation intensity and dispersed and continuous phase flow rates on volumetric overall mass transfer coefficients have been investigated. Effective diffusivity is substituted for molecular diffusivity in the Gröber equation for prediction of dispersed phase overall mass transfer coefficients. The enhancement factor is determined experimentally and therefrom an empirical correlation is derived for prediction of effective diffusivity as a function of Reynolds number, Schmidt number and viscosity ratio. Good agreement between prediction and experiments was found for all operating conditions that were investigated.Brazilian Society of Chemical Engineering2009-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322009000400007Brazilian Journal of Chemical Engineering v.26 n.4 2009reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322009000400007info:eu-repo/semantics/openAccessTorab-Mostaedi,M.Safdari,J.eng2010-01-04T00:00:00Zoai:scielo:S0104-66322009000400007Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2010-01-04T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Prediction of mass transfer coefficients in a pulsed packed extraction column using effective diffusivity
title Prediction of mass transfer coefficients in a pulsed packed extraction column using effective diffusivity
spellingShingle Prediction of mass transfer coefficients in a pulsed packed extraction column using effective diffusivity
Torab-Mostaedi,M.
Pulsed packed column
Mass transfer coefficient
Axial diffusion model
Enhancement factor
Effective diffusivity
title_short Prediction of mass transfer coefficients in a pulsed packed extraction column using effective diffusivity
title_full Prediction of mass transfer coefficients in a pulsed packed extraction column using effective diffusivity
title_fullStr Prediction of mass transfer coefficients in a pulsed packed extraction column using effective diffusivity
title_full_unstemmed Prediction of mass transfer coefficients in a pulsed packed extraction column using effective diffusivity
title_sort Prediction of mass transfer coefficients in a pulsed packed extraction column using effective diffusivity
author Torab-Mostaedi,M.
author_facet Torab-Mostaedi,M.
Safdari,J.
author_role author
author2 Safdari,J.
author2_role author
dc.contributor.author.fl_str_mv Torab-Mostaedi,M.
Safdari,J.
dc.subject.por.fl_str_mv Pulsed packed column
Mass transfer coefficient
Axial diffusion model
Enhancement factor
Effective diffusivity
topic Pulsed packed column
Mass transfer coefficient
Axial diffusion model
Enhancement factor
Effective diffusivity
description The volumetric overall mass transfer coefficients have been measured in a pulsed packed extraction column using diffusion model for two different liquid-liquid systems. The effects of operational variables such as pulsation intensity and dispersed and continuous phase flow rates on volumetric overall mass transfer coefficients have been investigated. Effective diffusivity is substituted for molecular diffusivity in the Gröber equation for prediction of dispersed phase overall mass transfer coefficients. The enhancement factor is determined experimentally and therefrom an empirical correlation is derived for prediction of effective diffusivity as a function of Reynolds number, Schmidt number and viscosity ratio. Good agreement between prediction and experiments was found for all operating conditions that were investigated.
publishDate 2009
dc.date.none.fl_str_mv 2009-12-01
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=S0104-66322009000400007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322009000400007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322009000400007
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.26 n.4 2009
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_ 1754213173068562432

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