Caracterização de hidrociclones com cilindros e cones permeáveis
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFU |
Texto Completo: | https://repositorio.ufu.br/handle/123456789/37288 http://doi.org/10.14393/ufu.te.2022.482 |
Resumo: | Published studies on hydrocyclones up to 2022 mostly report their use in the processing of dilute suspensions. However, high concentrations of solids, is more commonly encountered in industrial practices, and the use of hydrocyclones in these cases can result in inefficient separations. Possible changes in the structure of hydrocyclones have been studied to improve the performance of these separators, such as the association of filtration and hydrocycloning operation. The filtering hydrocyclone has a cylindrical wall, conical wall, or both, made of porous material, and has an additional outflow (filtered) for the fluid. Given this context, this experimental study intended to evaluate the performance of optimal geometries of hydrocyclones with filtering cylinders and cones (HCiCoF-OT1 and HCiCoF-OT3, HCoF-OT1 and HCoF-OT3), proposed by Salvador (2017), operating with suspensions with different solids concentrations. For this, an experimental design was developed for each hydrocyclone to evaluate the effects of filtration and three levels of the variables of interest: feed solids concentration (CVA), underflow diameter (DU), and pressure drop (–ΔP). In all cases, it was observed that the energy consumption was reduced for the filtering hydrocyclones; and the increase in the feed solids concentration led to a reduction in the total efficiency. For the hydrocyclones of HCiCoF-OT1 and HCoF-OT1 geometries, the total efficiency was minimized with the increase of CVA and reduction of the variables underflow diameter and pressure drop. The maximum tottal efficiency achieved was 85 % for HCiCoF-OT1 and 86 % for HCoF-OT1 operating with DU of 5 mm, pressure drop of 1.77 bar, and 1.0 %v. of solids in the feed. These hydrocyclones also provided high total efficiencies in suspensions containing 10.0 %v. solids, reaching 79 % (HCiCoF-OT1) and 77 % (HCoF-OT1). The hydrocyclones of HCiCoF-OT3 and HCoF-OT3 geometries showed low split ratios for all concentrations studied. HCiCoF-OT3 presented RL of 0.6 % for the most diluted suspension (CVA = 1.0 %v.), and 4.0 % for the most concentrated (CVA = 10.0 %v.). To these hydrocyclones the split ratio was lower for dilute suspensions, smaller underflow diameters, and conventional equipment; for concentrated suspensions, the filtering equipment presented a better alternative for providing a lower energy consumption and statistically equal RL. |
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Caracterização de hidrociclones com cilindros e cones permeáveisCharacterization of hydrocyclones with permeable cylinders and conesSeparação sólido-líquidoFiltraçãoSuspensões concentradasConcentração de sólidosDiâmetro de underflowSolid-liquid separationFiltrationSlurriesSolids concentrationUnderflow diameterCNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA::OPERACOES DE SEPARACAO E MISTURAPublished studies on hydrocyclones up to 2022 mostly report their use in the processing of dilute suspensions. However, high concentrations of solids, is more commonly encountered in industrial practices, and the use of hydrocyclones in these cases can result in inefficient separations. Possible changes in the structure of hydrocyclones have been studied to improve the performance of these separators, such as the association of filtration and hydrocycloning operation. The filtering hydrocyclone has a cylindrical wall, conical wall, or both, made of porous material, and has an additional outflow (filtered) for the fluid. Given this context, this experimental study intended to evaluate the performance of optimal geometries of hydrocyclones with filtering cylinders and cones (HCiCoF-OT1 and HCiCoF-OT3, HCoF-OT1 and HCoF-OT3), proposed by Salvador (2017), operating with suspensions with different solids concentrations. For this, an experimental design was developed for each hydrocyclone to evaluate the effects of filtration and three levels of the variables of interest: feed solids concentration (CVA), underflow diameter (DU), and pressure drop (–ΔP). In all cases, it was observed that the energy consumption was reduced for the filtering hydrocyclones; and the increase in the feed solids concentration led to a reduction in the total efficiency. For the hydrocyclones of HCiCoF-OT1 and HCoF-OT1 geometries, the total efficiency was minimized with the increase of CVA and reduction of the variables underflow diameter and pressure drop. The maximum tottal efficiency achieved was 85 % for HCiCoF-OT1 and 86 % for HCoF-OT1 operating with DU of 5 mm, pressure drop of 1.77 bar, and 1.0 %v. of solids in the feed. These hydrocyclones also provided high total efficiencies in suspensions containing 10.0 %v. solids, reaching 79 % (HCiCoF-OT1) and 77 % (HCoF-OT1). The hydrocyclones of HCiCoF-OT3 and HCoF-OT3 geometries showed low split ratios for all concentrations studied. HCiCoF-OT3 presented RL of 0.6 % for the most diluted suspension (CVA = 1.0 %v.), and 4.0 % for the most concentrated (CVA = 10.0 %v.). To these hydrocyclones the split ratio was lower for dilute suspensions, smaller underflow diameters, and conventional equipment; for concentrated suspensions, the filtering equipment presented a better alternative for providing a lower energy consumption and statistically equal RL.CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorTese (Doutorado)Estudos publicados sobre hidrociclones até o ano de 2022 relatam seu uso majoritariamente no processamento de suspensões diluídas. No entanto, suspensões com altas concentrações de sólidos são mais comumente encontradas em práticas industriais e o uso de hidrociclones nesses casos pode resultar em separações pouco eficientes. Com o propósito de melhorar o desempenho desses separadores, modificações em sua estrutura têm sido estudadas, como a associação da operação de filtração à hidrociclonagem. O hidrociclone filtrante apresenta a parede cilíndrica, cônica ou ambas, constituídas em material poroso, e apresenta uma saída adicional (filtrado) para o fluido. Diante desse contexto, um estudo experimental foi proposto para avaliar o desempenho de geometrias otimizadas de hidrociclones com cilindros e/ou cones filtrantes (HCiCoF-OT1 e HCiCoF-OT3, HCoF-OT1 e HCoF-OT3), sugeridas por Salvador (2017), operando suspensões contendo até 10,0 % de sólidos em volume. Para isso, desenvolveu-se um planejamento experimental para cada equipamento, no qual foram avaliados três níveis das variáveis de interesse: concentração volumétrica de sólidos na alimentação (CVA), diâmetro de underflow (DU) e queda de pressão (–ΔP). Os efeitos da filtração foram estimados através da comparação com equipamentos convencionais (paredes totalmente maciças) de mesma geometria. Em todos os casos observou-se que o consumo energético foi reduzido para os hidrociclones filtrantes; e que o aumento de CVA levou à redução da eficiência total. Para os hidrociclones de geometrias HCiCoF-OT1 e HCoF-OT1 a eficiência total foi maximizada com o aumento dos níveis de DU e –ΔP. Esses equipamentos foram capazes de promover altas eficiências totais de separação, obtendo-se ET = 85 % para HCiCoF-OT1 e ET = 86 % para HCoF-OT1 com o processamento de suspensões diluídas (CVA = 1,0 %v.); e foram alcançadas eficiências de 79 % (HiCoF-OT1) e 77 % (HCoF-OT1) para suspensões concentradas (CVA = 10,0 %v.). Os hidrociclones de geometrias HCiCoF-OT3 e HCoF-OT3 proporcionaram baixas razões de líquido para todas as concentrações estudadas. Sendo que HCiCoF-OT3 apresentou RL de 0,6 % para a suspensão diluída (CVA = 1,0 %v.), e de 4,0 % para a mais concentrada (CVA = 10,0 %), o que ratifica o alto potencial concentrador desses separadores. A razão de líquido nesses equipamentos foi minorada para menores diâmetros de underflow. Para suspensões diluídas, a razão de líquido foi minorada para os hidrociclones convencionais; já para suspensões concentradas os equipamentos filtrantes apresentaram uma melhor alternativa por proporcionar um menor consumo energético e RL estatisticamente iguais.Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia QuímicaBarrozo, Marcos Antonio de Souzahttp://lattes.cnpq.br/7024983341494297Vieira, Luiz Gustavo Martinshttp://lattes.cnpq.br/6266547523604644Bicalho, Isabele Cristinahttp://lattes.cnpq.br/3296524340665201Tanabe, Eduardo Hiromitsuhttp://lattes.cnpq.br/9778700143605069Kyriakidis, Yanne Novaishttp://lattes.cnpq.br/4496520699221094Silva, Danylo de Oliveirahttp://lattes.cnpq.br/8216573686887098Faria, Érica Victor de2023-02-23T18:21:47Z2023-02-23T18:21:47Z2022-08-29info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfFARIA, Érica Victor de. Caracterização de hidrociclones com cilindros e cones permeáveis. 2022. 181 f. Tese (Doutorado em Engenharia Química) - Universidade Federal de Uberlândia, Uberlândia, 2022. DOI http://doi.org/10.14393/ufu.te.2022.482https://repositorio.ufu.br/handle/123456789/37288http://doi.org/10.14393/ufu.te.2022.482porhttp://creativecommons.org/licenses/by-nc-nd/3.0/us/info:eu-repo/semantics/embargoedAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFU2023-02-24T06:21:19Zoai:repositorio.ufu.br:123456789/37288Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2023-02-24T06:21:19Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Caracterização de hidrociclones com cilindros e cones permeáveis Characterization of hydrocyclones with permeable cylinders and cones |
title |
Caracterização de hidrociclones com cilindros e cones permeáveis |
spellingShingle |
Caracterização de hidrociclones com cilindros e cones permeáveis Faria, Érica Victor de Separação sólido-líquido Filtração Suspensões concentradas Concentração de sólidos Diâmetro de underflow Solid-liquid separation Filtration Slurries Solids concentration Underflow diameter CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA::OPERACOES DE SEPARACAO E MISTURA |
title_short |
Caracterização de hidrociclones com cilindros e cones permeáveis |
title_full |
Caracterização de hidrociclones com cilindros e cones permeáveis |
title_fullStr |
Caracterização de hidrociclones com cilindros e cones permeáveis |
title_full_unstemmed |
Caracterização de hidrociclones com cilindros e cones permeáveis |
title_sort |
Caracterização de hidrociclones com cilindros e cones permeáveis |
author |
Faria, Érica Victor de |
author_facet |
Faria, Érica Victor de |
author_role |
author |
dc.contributor.none.fl_str_mv |
Barrozo, Marcos Antonio de Souza http://lattes.cnpq.br/7024983341494297 Vieira, Luiz Gustavo Martins http://lattes.cnpq.br/6266547523604644 Bicalho, Isabele Cristina http://lattes.cnpq.br/3296524340665201 Tanabe, Eduardo Hiromitsu http://lattes.cnpq.br/9778700143605069 Kyriakidis, Yanne Novais http://lattes.cnpq.br/4496520699221094 Silva, Danylo de Oliveira http://lattes.cnpq.br/8216573686887098 |
dc.contributor.author.fl_str_mv |
Faria, Érica Victor de |
dc.subject.por.fl_str_mv |
Separação sólido-líquido Filtração Suspensões concentradas Concentração de sólidos Diâmetro de underflow Solid-liquid separation Filtration Slurries Solids concentration Underflow diameter CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA::OPERACOES DE SEPARACAO E MISTURA |
topic |
Separação sólido-líquido Filtração Suspensões concentradas Concentração de sólidos Diâmetro de underflow Solid-liquid separation Filtration Slurries Solids concentration Underflow diameter CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA::OPERACOES DE SEPARACAO E MISTURA |
description |
Published studies on hydrocyclones up to 2022 mostly report their use in the processing of dilute suspensions. However, high concentrations of solids, is more commonly encountered in industrial practices, and the use of hydrocyclones in these cases can result in inefficient separations. Possible changes in the structure of hydrocyclones have been studied to improve the performance of these separators, such as the association of filtration and hydrocycloning operation. The filtering hydrocyclone has a cylindrical wall, conical wall, or both, made of porous material, and has an additional outflow (filtered) for the fluid. Given this context, this experimental study intended to evaluate the performance of optimal geometries of hydrocyclones with filtering cylinders and cones (HCiCoF-OT1 and HCiCoF-OT3, HCoF-OT1 and HCoF-OT3), proposed by Salvador (2017), operating with suspensions with different solids concentrations. For this, an experimental design was developed for each hydrocyclone to evaluate the effects of filtration and three levels of the variables of interest: feed solids concentration (CVA), underflow diameter (DU), and pressure drop (–ΔP). In all cases, it was observed that the energy consumption was reduced for the filtering hydrocyclones; and the increase in the feed solids concentration led to a reduction in the total efficiency. For the hydrocyclones of HCiCoF-OT1 and HCoF-OT1 geometries, the total efficiency was minimized with the increase of CVA and reduction of the variables underflow diameter and pressure drop. The maximum tottal efficiency achieved was 85 % for HCiCoF-OT1 and 86 % for HCoF-OT1 operating with DU of 5 mm, pressure drop of 1.77 bar, and 1.0 %v. of solids in the feed. These hydrocyclones also provided high total efficiencies in suspensions containing 10.0 %v. solids, reaching 79 % (HCiCoF-OT1) and 77 % (HCoF-OT1). The hydrocyclones of HCiCoF-OT3 and HCoF-OT3 geometries showed low split ratios for all concentrations studied. HCiCoF-OT3 presented RL of 0.6 % for the most diluted suspension (CVA = 1.0 %v.), and 4.0 % for the most concentrated (CVA = 10.0 %v.). To these hydrocyclones the split ratio was lower for dilute suspensions, smaller underflow diameters, and conventional equipment; for concentrated suspensions, the filtering equipment presented a better alternative for providing a lower energy consumption and statistically equal RL. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-08-29 2023-02-23T18:21:47Z 2023-02-23T18:21:47Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
FARIA, Érica Victor de. Caracterização de hidrociclones com cilindros e cones permeáveis. 2022. 181 f. Tese (Doutorado em Engenharia Química) - Universidade Federal de Uberlândia, Uberlândia, 2022. DOI http://doi.org/10.14393/ufu.te.2022.482 https://repositorio.ufu.br/handle/123456789/37288 http://doi.org/10.14393/ufu.te.2022.482 |
identifier_str_mv |
FARIA, Érica Victor de. Caracterização de hidrociclones com cilindros e cones permeáveis. 2022. 181 f. Tese (Doutorado em Engenharia Química) - Universidade Federal de Uberlândia, Uberlândia, 2022. DOI http://doi.org/10.14393/ufu.te.2022.482 |
url |
https://repositorio.ufu.br/handle/123456789/37288 http://doi.org/10.14393/ufu.te.2022.482 |
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por |
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http://creativecommons.org/licenses/by-nc-nd/3.0/us/ info:eu-repo/semantics/embargoedAccess |
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Universidade Federal de Uberlândia Brasil Programa de Pós-graduação em Engenharia Química |
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Universidade Federal de Uberlândia Brasil Programa de Pós-graduação em Engenharia Química |
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reponame:Repositório Institucional da UFU instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
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Universidade Federal de Uberlândia (UFU) |
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Repositório Institucional da UFU |
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Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU) |
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diinf@dirbi.ufu.br |
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