Gas permeability and compressive strength evaluation of porous Al2O3 supported membrane

Detalhes bibliográficos
Autor(a) principal: Mattos,F. N. de
Data de Publicação: 2022
Outros Autores: Molisani,A. L., Caldeira,L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132022000100046
Resumo: Abstract The aim was to investigate the feasibility of using a device to characterize permeability in porous substrates with low gas flux. Al2O3 supports were prepared by dry pressing using 1 to 3 wt% of polyethylene glycol (PEG) as a pore-forming agent. The green body was partially sintered at 1300 ºC. CO2 gas was used to measure both the pressure loss and the gas flux passing through the porous substrate. The permeability behavior was analyzed by the Darcy and Forchheimer models. The correlation between Darcy’s and Forchheimer’s permeabilities showed that the porous substrates may be used as membranes for micro, ultra, and nanofiltration. The mechanical resistance and the gas permeability exhibited antagonistic dependencies in relation to porosity, being identified as an optimized condition at 2 wt% PEG, in which the two properties presented high values.
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spelling Gas permeability and compressive strength evaluation of porous Al2O3 supported membraneAl2O3porositypermeabilitymechanical propertyAbstract The aim was to investigate the feasibility of using a device to characterize permeability in porous substrates with low gas flux. Al2O3 supports were prepared by dry pressing using 1 to 3 wt% of polyethylene glycol (PEG) as a pore-forming agent. The green body was partially sintered at 1300 ºC. CO2 gas was used to measure both the pressure loss and the gas flux passing through the porous substrate. The permeability behavior was analyzed by the Darcy and Forchheimer models. The correlation between Darcy’s and Forchheimer’s permeabilities showed that the porous substrates may be used as membranes for micro, ultra, and nanofiltration. The mechanical resistance and the gas permeability exhibited antagonistic dependencies in relation to porosity, being identified as an optimized condition at 2 wt% PEG, in which the two properties presented high values.Associação Brasileira de Cerâmica2022-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132022000100046Cerâmica v.68 n.385 2022reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132022683853204info:eu-repo/semantics/openAccessMattos,F. N. deMolisani,A. L.Caldeira,L.eng2022-03-14T00:00:00Zoai:scielo:S0366-69132022000100046Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2022-03-14T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Gas permeability and compressive strength evaluation of porous Al2O3 supported membrane
title Gas permeability and compressive strength evaluation of porous Al2O3 supported membrane
spellingShingle Gas permeability and compressive strength evaluation of porous Al2O3 supported membrane
Mattos,F. N. de
Al2O3
porosity
permeability
mechanical property
title_short Gas permeability and compressive strength evaluation of porous Al2O3 supported membrane
title_full Gas permeability and compressive strength evaluation of porous Al2O3 supported membrane
title_fullStr Gas permeability and compressive strength evaluation of porous Al2O3 supported membrane
title_full_unstemmed Gas permeability and compressive strength evaluation of porous Al2O3 supported membrane
title_sort Gas permeability and compressive strength evaluation of porous Al2O3 supported membrane
author Mattos,F. N. de
author_facet Mattos,F. N. de
Molisani,A. L.
Caldeira,L.
author_role author
author2 Molisani,A. L.
Caldeira,L.
author2_role author
author
dc.contributor.author.fl_str_mv Mattos,F. N. de
Molisani,A. L.
Caldeira,L.
dc.subject.por.fl_str_mv Al2O3
porosity
permeability
mechanical property
topic Al2O3
porosity
permeability
mechanical property
description Abstract The aim was to investigate the feasibility of using a device to characterize permeability in porous substrates with low gas flux. Al2O3 supports were prepared by dry pressing using 1 to 3 wt% of polyethylene glycol (PEG) as a pore-forming agent. The green body was partially sintered at 1300 ºC. CO2 gas was used to measure both the pressure loss and the gas flux passing through the porous substrate. The permeability behavior was analyzed by the Darcy and Forchheimer models. The correlation between Darcy’s and Forchheimer’s permeabilities showed that the porous substrates may be used as membranes for micro, ultra, and nanofiltration. The mechanical resistance and the gas permeability exhibited antagonistic dependencies in relation to porosity, being identified as an optimized condition at 2 wt% PEG, in which the two properties presented high values.
publishDate 2022
dc.date.none.fl_str_mv 2022-03-01
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=S0366-69132022000100046
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132022000100046
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0366-69132022683853204
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 Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.68 n.385 2022
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
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