A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498

Detalhes bibliográficos
Autor(a) principal: Ambrósio-Ugri, Miriam Carla Bonicontro
Data de Publicação: 2008
Outros Autores: Taranto, Osvaldir Pereira
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta scientiarum. Technology (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1498
Resumo: The conventional fluidized bed application for cohesive particulate materials presents a certain limitation due to the formation of gas channeling and, therefore, the occurrence of low quality fluidization. In this work, the use of a mechanical agitation system inside the fluidized bed was studied, evaluating the fluid dynamic of the mechanically agitated fluidized bed. Next, a study about a drying process of a particulate material (2-hydroxybenzoic acid) was done, with a medium dp of about 80 µm, with cohesive characteristics when wet. The results show that the agitation improves the solids distribution inside the bed and block the gas channeling, and that the drying process occurs mainly in the constant drying rate period
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spelling A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498Estudo fluidodinâmico e de secagem de um particulado coesivo em leito fluidizado agitado - DOI: 10.4025/actascitechnol.v26i2.1498fluidodinâmicasecagemmaterial particuladoleito fluidizado3.06.00.00-6 Engenharia QuímicaThe conventional fluidized bed application for cohesive particulate materials presents a certain limitation due to the formation of gas channeling and, therefore, the occurrence of low quality fluidization. In this work, the use of a mechanical agitation system inside the fluidized bed was studied, evaluating the fluid dynamic of the mechanically agitated fluidized bed. Next, a study about a drying process of a particulate material (2-hydroxybenzoic acid) was done, with a medium dp of about 80 µm, with cohesive characteristics when wet. The results show that the agitation improves the solids distribution inside the bed and block the gas channeling, and that the drying process occurs mainly in the constant drying rate periodA aplicação do leito fluidizado convencional para materiais particulados coesivos apresenta uma certa limitação devido a formação de caminhos preferenciais do gás causando uma fluidização de baixa qualidade. Neste trabalho, estudou-se a possibilidade do uso de um sistema de agitação mecânica inserido no leito fluidizado, a partir do estudo da fluidodinâmica do leito fluidizado agitado mecanicamente com a obtenção da curva característica de fluidização. Em seguida, foi feito o estudo do processo de secagem de um material particulado (ácido 2-hidroxibenzóico), com dp médio de aproximadamente 80 µm, com característica coesiva quando úmido. Os resultados obtidos mostraram que a agitação melhora a distribuição dos sólidos no interior do leito e impede a formação de caminhos preferenciais do gás, e que o processo de secagem ocorre principalmente no período de taxa de secagem constanteUniversidade Estadual De Maringá2008-03-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/149810.4025/actascitechnol.v26i2.1498Acta Scientiarum. Technology; Vol 26 No 2 (2004); 97-102Acta Scientiarum. Technology; v. 26 n. 2 (2004); 97-1021806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1498/865Ambrósio-Ugri, Miriam Carla BonicontroTaranto, Osvaldir Pereirainfo:eu-repo/semantics/openAccess2024-05-17T13:02:37Zoai:periodicos.uem.br/ojs:article/1498Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:37Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498
Estudo fluidodinâmico e de secagem de um particulado coesivo em leito fluidizado agitado - DOI: 10.4025/actascitechnol.v26i2.1498
title A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498
spellingShingle A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498
Ambrósio-Ugri, Miriam Carla Bonicontro
fluidodinâmica
secagem
material particulado
leito fluidizado
3.06.00.00-6 Engenharia Química
title_short A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498
title_full A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498
title_fullStr A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498
title_full_unstemmed A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498
title_sort A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498
author Ambrósio-Ugri, Miriam Carla Bonicontro
author_facet Ambrósio-Ugri, Miriam Carla Bonicontro
Taranto, Osvaldir Pereira
author_role author
author2 Taranto, Osvaldir Pereira
author2_role author
dc.contributor.author.fl_str_mv Ambrósio-Ugri, Miriam Carla Bonicontro
Taranto, Osvaldir Pereira
dc.subject.por.fl_str_mv fluidodinâmica
secagem
material particulado
leito fluidizado
3.06.00.00-6 Engenharia Química
topic fluidodinâmica
secagem
material particulado
leito fluidizado
3.06.00.00-6 Engenharia Química
description The conventional fluidized bed application for cohesive particulate materials presents a certain limitation due to the formation of gas channeling and, therefore, the occurrence of low quality fluidization. In this work, the use of a mechanical agitation system inside the fluidized bed was studied, evaluating the fluid dynamic of the mechanically agitated fluidized bed. Next, a study about a drying process of a particulate material (2-hydroxybenzoic acid) was done, with a medium dp of about 80 µm, with cohesive characteristics when wet. The results show that the agitation improves the solids distribution inside the bed and block the gas channeling, and that the drying process occurs mainly in the constant drying rate period
publishDate 2008
dc.date.none.fl_str_mv 2008-03-28
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1498
10.4025/actascitechnol.v26i2.1498
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1498
identifier_str_mv 10.4025/actascitechnol.v26i2.1498
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1498/865
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 Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Technology; Vol 26 No 2 (2004); 97-102
Acta Scientiarum. Technology; v. 26 n. 2 (2004); 97-102
1806-2563
1807-8664
reponame:Acta scientiarum. Technology (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta scientiarum. Technology (Online)
collection Acta scientiarum. Technology (Online)
repository.name.fl_str_mv Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actatech@uem.br
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