Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement

Autores
Chiovetta, Mario Gabriel; Romero, Roberto Leopoldo; Cassano, Alberto Enrique
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A system consisting of a fluidized bed of quartz-support particles impregnated with titanium dioxide in a UV-irradiated annular arrangement is presented as an efficient reactor configuration for the photocatalytic oxidation of diluted trichloroethylene in water. A mathematical scheme is developed to analyze the fluidized bed, including a detailed radiation field representation and an intrinsic kinetic scheme. The model is used to predict operating conditions at which good mixing states and fluid renewal rates are accomplished throughout the bed, and to compute contaminant decay. Systems analyzed include a high-pressure Hg lamp, long setup, and an “actinic”, low-pressure lamp in a long reactor. For relatively high flow rates, per-pass oxidation conversions between 9 and 35% are reached depending on the reactor system considered, and on the titanium oxide concentration in the bed, ranging between 0.1 and . Results indicate a strong dependence of reactor performance upon the radiation energy available at each point in the annulus. This availability, in turn, is a fraction of both lamp power and UV-radiation penetration within the bed. For the selected contaminant, the kinetic scheme shows that the low-energy disadvantage in the low-pressure lamp reactor can be compensated by the fact that the radiation field is more evenly distributed throughout the fluidized particle bed.
Fil: Chiovetta, Mario Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Romero, Roberto Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/30053
Acceder
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spelling Modeling of a fluidized-bed photocatalytic reactor for water pollution abatementChiovetta, Mario GabrielRomero, Roberto LeopoldoCassano, Alberto Enriquehttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2A system consisting of a fluidized bed of quartz-support particles impregnated with titanium dioxide in a UV-irradiated annular arrangement is presented as an efficient reactor configuration for the photocatalytic oxidation of diluted trichloroethylene in water. A mathematical scheme is developed to analyze the fluidized bed, including a detailed radiation field representation and an intrinsic kinetic scheme. The model is used to predict operating conditions at which good mixing states and fluid renewal rates are accomplished throughout the bed, and to compute contaminant decay. Systems analyzed include a high-pressure Hg lamp, long setup, and an “actinic”, low-pressure lamp in a long reactor. For relatively high flow rates, per-pass oxidation conversions between 9 and 35% are reached depending on the reactor system considered, and on the titanium oxide concentration in the bed, ranging between 0.1 and . Results indicate a strong dependence of reactor performance upon the radiation energy available at each point in the annulus. This availability, in turn, is a fraction of both lamp power and UV-radiation penetration within the bed. For the selected contaminant, the kinetic scheme shows that the low-energy disadvantage in the low-pressure lamp reactor can be compensated by the fact that the radiation field is more evenly distributed throughout the fluidized particle bed.Fil: Chiovetta, Mario Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Romero, Roberto Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaPergamon-Elsevier Science Ltd.2001-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30053Chiovetta, Mario Gabriel; Romero, Roberto Leopoldo; Cassano, Alberto Enrique; Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement; Pergamon-Elsevier Science Ltd.; Chemical Engineering Science; 56; 4; 12-2001; 1631-16380009-2509CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0009-2509(00)00391-2info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:47:11Zoai:ri.conicet.gov.ar:11336/30053instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:47:11.826CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement
title Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement
spellingShingle Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement
Chiovetta, Mario Gabriel
title_short Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement
title_full Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement
title_fullStr Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement
title_full_unstemmed Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement
title_sort Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement
dc.creator.none.fl_str_mv Chiovetta, Mario Gabriel
Romero, Roberto Leopoldo
Cassano, Alberto Enrique
author Chiovetta, Mario Gabriel
author_facet Chiovetta, Mario Gabriel
Romero, Roberto Leopoldo
Cassano, Alberto Enrique
author_role author
author2 Romero, Roberto Leopoldo
Cassano, Alberto Enrique
author2_role author
author
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A system consisting of a fluidized bed of quartz-support particles impregnated with titanium dioxide in a UV-irradiated annular arrangement is presented as an efficient reactor configuration for the photocatalytic oxidation of diluted trichloroethylene in water. A mathematical scheme is developed to analyze the fluidized bed, including a detailed radiation field representation and an intrinsic kinetic scheme. The model is used to predict operating conditions at which good mixing states and fluid renewal rates are accomplished throughout the bed, and to compute contaminant decay. Systems analyzed include a high-pressure Hg lamp, long setup, and an “actinic”, low-pressure lamp in a long reactor. For relatively high flow rates, per-pass oxidation conversions between 9 and 35% are reached depending on the reactor system considered, and on the titanium oxide concentration in the bed, ranging between 0.1 and . Results indicate a strong dependence of reactor performance upon the radiation energy available at each point in the annulus. This availability, in turn, is a fraction of both lamp power and UV-radiation penetration within the bed. For the selected contaminant, the kinetic scheme shows that the low-energy disadvantage in the low-pressure lamp reactor can be compensated by the fact that the radiation field is more evenly distributed throughout the fluidized particle bed.
Fil: Chiovetta, Mario Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Romero, Roberto Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
description A system consisting of a fluidized bed of quartz-support particles impregnated with titanium dioxide in a UV-irradiated annular arrangement is presented as an efficient reactor configuration for the photocatalytic oxidation of diluted trichloroethylene in water. A mathematical scheme is developed to analyze the fluidized bed, including a detailed radiation field representation and an intrinsic kinetic scheme. The model is used to predict operating conditions at which good mixing states and fluid renewal rates are accomplished throughout the bed, and to compute contaminant decay. Systems analyzed include a high-pressure Hg lamp, long setup, and an “actinic”, low-pressure lamp in a long reactor. For relatively high flow rates, per-pass oxidation conversions between 9 and 35% are reached depending on the reactor system considered, and on the titanium oxide concentration in the bed, ranging between 0.1 and . Results indicate a strong dependence of reactor performance upon the radiation energy available at each point in the annulus. This availability, in turn, is a fraction of both lamp power and UV-radiation penetration within the bed. For the selected contaminant, the kinetic scheme shows that the low-energy disadvantage in the low-pressure lamp reactor can be compensated by the fact that the radiation field is more evenly distributed throughout the fluidized particle bed.
publishDate 2001
dc.date.none.fl_str_mv 2001-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/30053
Chiovetta, Mario Gabriel; Romero, Roberto Leopoldo; Cassano, Alberto Enrique; Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement; Pergamon-Elsevier Science Ltd.; Chemical Engineering Science; 56; 4; 12-2001; 1631-1638
0009-2509
CONICET Digital
CONICET
url http://hdl.handle.net/11336/30053
identifier_str_mv Chiovetta, Mario Gabriel; Romero, Roberto Leopoldo; Cassano, Alberto Enrique; Modeling of a fluidized-bed photocatalytic reactor for water pollution abatement; Pergamon-Elsevier Science Ltd.; Chemical Engineering Science; 56; 4; 12-2001; 1631-1638
0009-2509
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/S0009-2509(00)00391-2
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd.
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd.
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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