A fluid dynamic and drying study of a cohesive particulate in agitated fluidized bed - DOI: 10.4025/actascitechnol.v26i2.1498
Autor(a) principal: | |
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Data de Publicação: | 2008 |
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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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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 |
_version_ |
1799315331946119168 |