Dispersed phase holdup in a pulsed disc and doughnut extraction column
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
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=S0104-66322011000200016 |
Resumo: | Dispersed phase holdup has been measured in a 76 mm diameter pulsed disc and doughnut extraction column for three different liquid-liquid systems. The effects of operational variables such as pulsation intensity and dispersed and continuous phase flow rates on holdup have been investigated and found to be significant. The existence of three different operational regimes, namely mixer-settler, dispersion, and emulsion regimes, was observed when the energy input was changed. The results indicated that the characteristic velocity approach is applicable to this type of extraction column for analysis of holdup in the transition and emulsion regions. Empirical correlations are derived for prediction of the dispersed phase holdup in terms of the physical properties of the system and the operating variables in different operating regimes. Good agreement between prediction and experiments was found for all operating conditions investigated. |
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Brazilian Journal of Chemical Engineering |
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spelling |
Dispersed phase holdup in a pulsed disc and doughnut extraction columnDispersed phase holdupPulsed disc and doughnut columnSlip velocityCharacteristic velocityDispersed phase holdup has been measured in a 76 mm diameter pulsed disc and doughnut extraction column for three different liquid-liquid systems. The effects of operational variables such as pulsation intensity and dispersed and continuous phase flow rates on holdup have been investigated and found to be significant. The existence of three different operational regimes, namely mixer-settler, dispersion, and emulsion regimes, was observed when the energy input was changed. The results indicated that the characteristic velocity approach is applicable to this type of extraction column for analysis of holdup in the transition and emulsion regions. Empirical correlations are derived for prediction of the dispersed phase holdup in terms of the physical properties of the system and the operating variables in different operating regimes. Good agreement between prediction and experiments was found for all operating conditions investigated.Brazilian Society of Chemical Engineering2011-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322011000200016Brazilian Journal of Chemical Engineering v.28 n.2 2011reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322011000200016info:eu-repo/semantics/openAccessTorab-Mostaedi,M.Jalilvand,H.Outokesh,M.eng2011-07-04T00:00:00Zoai:scielo:S0104-66322011000200016Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2011-07-04T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Dispersed phase holdup in a pulsed disc and doughnut extraction column |
title |
Dispersed phase holdup in a pulsed disc and doughnut extraction column |
spellingShingle |
Dispersed phase holdup in a pulsed disc and doughnut extraction column Torab-Mostaedi,M. Dispersed phase holdup Pulsed disc and doughnut column Slip velocity Characteristic velocity |
title_short |
Dispersed phase holdup in a pulsed disc and doughnut extraction column |
title_full |
Dispersed phase holdup in a pulsed disc and doughnut extraction column |
title_fullStr |
Dispersed phase holdup in a pulsed disc and doughnut extraction column |
title_full_unstemmed |
Dispersed phase holdup in a pulsed disc and doughnut extraction column |
title_sort |
Dispersed phase holdup in a pulsed disc and doughnut extraction column |
author |
Torab-Mostaedi,M. |
author_facet |
Torab-Mostaedi,M. Jalilvand,H. Outokesh,M. |
author_role |
author |
author2 |
Jalilvand,H. Outokesh,M. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Torab-Mostaedi,M. Jalilvand,H. Outokesh,M. |
dc.subject.por.fl_str_mv |
Dispersed phase holdup Pulsed disc and doughnut column Slip velocity Characteristic velocity |
topic |
Dispersed phase holdup Pulsed disc and doughnut column Slip velocity Characteristic velocity |
description |
Dispersed phase holdup has been measured in a 76 mm diameter pulsed disc and doughnut extraction column for three different liquid-liquid systems. The effects of operational variables such as pulsation intensity and dispersed and continuous phase flow rates on holdup have been investigated and found to be significant. The existence of three different operational regimes, namely mixer-settler, dispersion, and emulsion regimes, was observed when the energy input was changed. The results indicated that the characteristic velocity approach is applicable to this type of extraction column for analysis of holdup in the transition and emulsion regions. Empirical correlations are derived for prediction of the dispersed phase holdup in terms of the physical properties of the system and the operating variables in different operating regimes. Good agreement between prediction and experiments was found for all operating conditions investigated. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-06-01 |
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=S0104-66322011000200016 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322011000200016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322011000200016 |
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.28 n.2 2011 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_ |
1754213173460729856 |