Particulate binary mixtures: Dependence of packing porosity on particle size ratio

Detalhes bibliográficos
Autor(a) principal: Dias, Ricardo P.
Data de Publicação: 2004
Outros Autores: Teixeira, José, Mota, Manuel, Yelshin, Alexander
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/7039
Resumo: Binary mixtures with significant size ratios are scarcely studied. Yet, contaminants of chromatographic columns or ion-exchange resins have size ratios of delta < 0.1. Binary mixtures of glass beads with delta = 0.1-0.0375 were used experimentally to measure packing porosity. Simultaneously, a significant number of published data was analyzed. A linear mixing model was adopted to predict the porosity of each particle fraction in the binary mixture. Deviations from the model may be caused by wedging of small particles between the large ones. Large particles may disturb the porous medium properties by inducing a wall effect over the small particles. Wedging analysis led to the conclusion that, for delta < 0.01, its effect is insignificant. The wall effect yields an additional void around the large particles as long as delta > 0.0035. For delta < 0.0035, the small particles form a monosized dense packing and both wedging and wall effects become negligible.
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spelling Particulate binary mixtures: Dependence of packing porosity on particle size ratioParticle mixturesPorosityBinary mixtures with significant size ratios are scarcely studied. Yet, contaminants of chromatographic columns or ion-exchange resins have size ratios of delta < 0.1. Binary mixtures of glass beads with delta = 0.1-0.0375 were used experimentally to measure packing porosity. Simultaneously, a significant number of published data was analyzed. A linear mixing model was adopted to predict the porosity of each particle fraction in the binary mixture. Deviations from the model may be caused by wedging of small particles between the large ones. Large particles may disturb the porous medium properties by inducing a wall effect over the small particles. Wedging analysis led to the conclusion that, for delta < 0.01, its effect is insignificant. The wall effect yields an additional void around the large particles as long as delta > 0.0035. For delta < 0.0035, the small particles form a monosized dense packing and both wedging and wall effects become negligible.FCT, FEDERAmerican Chemical SocietyBiblioteca Digital do IPBDias, Ricardo P.Teixeira, JoséMota, ManuelYelshin, Alexander2012-06-11T08:16:05Z20042004-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/7039engDias, Ricardo P.; Teixeira, José A.; Mota, Manuel; Yelshin, Alexander (2004). Particulate binary mixtures : dependence of packing porosity on particle size ratio. Industrial & engineering chemistry research. ISSN 0888-5885. p.7912-79190888-588510.1021/ie040048binfo: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:RCAAP2023-11-21T10:17:29Zoai:bibliotecadigital.ipb.pt:10198/7039Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:58:54.108267Repositório 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 Particulate binary mixtures: Dependence of packing porosity on particle size ratio
title Particulate binary mixtures: Dependence of packing porosity on particle size ratio
spellingShingle Particulate binary mixtures: Dependence of packing porosity on particle size ratio
Dias, Ricardo P.
Particle mixtures
Porosity
title_short Particulate binary mixtures: Dependence of packing porosity on particle size ratio
title_full Particulate binary mixtures: Dependence of packing porosity on particle size ratio
title_fullStr Particulate binary mixtures: Dependence of packing porosity on particle size ratio
title_full_unstemmed Particulate binary mixtures: Dependence of packing porosity on particle size ratio
title_sort Particulate binary mixtures: Dependence of packing porosity on particle size ratio
author Dias, Ricardo P.
author_facet Dias, Ricardo P.
Teixeira, José
Mota, Manuel
Yelshin, Alexander
author_role author
author2 Teixeira, José
Mota, Manuel
Yelshin, Alexander
author2_role author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Dias, Ricardo P.
Teixeira, José
Mota, Manuel
Yelshin, Alexander
dc.subject.por.fl_str_mv Particle mixtures
Porosity
topic Particle mixtures
Porosity
description Binary mixtures with significant size ratios are scarcely studied. Yet, contaminants of chromatographic columns or ion-exchange resins have size ratios of delta < 0.1. Binary mixtures of glass beads with delta = 0.1-0.0375 were used experimentally to measure packing porosity. Simultaneously, a significant number of published data was analyzed. A linear mixing model was adopted to predict the porosity of each particle fraction in the binary mixture. Deviations from the model may be caused by wedging of small particles between the large ones. Large particles may disturb the porous medium properties by inducing a wall effect over the small particles. Wedging analysis led to the conclusion that, for delta < 0.01, its effect is insignificant. The wall effect yields an additional void around the large particles as long as delta > 0.0035. For delta < 0.0035, the small particles form a monosized dense packing and both wedging and wall effects become negligible.
publishDate 2004
dc.date.none.fl_str_mv 2004
2004-01-01T00:00:00Z
2012-06-11T08:16:05Z
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/10198/7039
url http://hdl.handle.net/10198/7039
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Dias, Ricardo P.; Teixeira, José A.; Mota, Manuel; Yelshin, Alexander (2004). Particulate binary mixtures : dependence of packing porosity on particle size ratio. Industrial & engineering chemistry research. ISSN 0888-5885. p.7912-7919
0888-5885
10.1021/ie040048b
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 American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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
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