Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor

Autores
Di Luca, Carla; Massa, Paola Andrea; Fenoglio, Rosa Juana; Medina Cabello, Francisco
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Improved Fe2O3/Al2O3 catalysts were studied for the catalytic oxidation of concentrated phenol solutions (5 g L−1) with H2O2. To enhance catalyst stability, two strategies were investigated: the use of a high calcination temperature and a step of immersion into an organic acid solution. The reaction runs were performed in a continuous reactor at 70°C and atmospheric pressure. RESULTS: For all the catalysts, almost complete phenol degradation was achieved. The mineralization levels were incomplete, reaching 60 and 50% for the catalysts treated with acetic and oxalic acid, respectively. The leaching levels were reduced from 25% (for the untreated catalyst) to 11% after the immersion in oxalic acid. In all cases, the formation of reversible carbonaceous deposits was observed during reaction and a progressive decay in phenol, TOC and H2O2 conversions was registered. CONCLUSION:Catalyst resistance to leaching was significantly enhanced by combining both thermal and acidic treatments. These procedures did not affect the catalytic wet hydrogen peroxide oxidation (CWHPO) performance in terms of mineralization levels. The lixiviation levels were acceptable, taking into account the strong acidic reaction medium. Deactivation processes might be primarily associated with the formation of reversible carbonaceous deposits due to intermediates accumulation onto the catalyst surface.
Fil: Di Luca, Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Massa, Paola Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Fenoglio, Rosa Juana. Universidad Nacional de Mar del Plata; Argentina
Fil: Medina Cabello, Francisco. Universitat Rovira I Virgili; España
Materia
Cwhpo
Fe2o3/Alumina
Fenton-Like Reaction
Phenol Removal
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:11336/4457
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactorDi Luca, CarlaMassa, Paola AndreaFenoglio, Rosa JuanaMedina Cabello, FranciscoCwhpoFe2o3/AluminaFenton-Like ReactionPhenol Removalhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Improved Fe2O3/Al2O3 catalysts were studied for the catalytic oxidation of concentrated phenol solutions (5 g L−1) with H2O2. To enhance catalyst stability, two strategies were investigated: the use of a high calcination temperature and a step of immersion into an organic acid solution. The reaction runs were performed in a continuous reactor at 70°C and atmospheric pressure. RESULTS: For all the catalysts, almost complete phenol degradation was achieved. The mineralization levels were incomplete, reaching 60 and 50% for the catalysts treated with acetic and oxalic acid, respectively. The leaching levels were reduced from 25% (for the untreated catalyst) to 11% after the immersion in oxalic acid. In all cases, the formation of reversible carbonaceous deposits was observed during reaction and a progressive decay in phenol, TOC and H2O2 conversions was registered. CONCLUSION:Catalyst resistance to leaching was significantly enhanced by combining both thermal and acidic treatments. These procedures did not affect the catalytic wet hydrogen peroxide oxidation (CWHPO) performance in terms of mineralization levels. The lixiviation levels were acceptable, taking into account the strong acidic reaction medium. Deactivation processes might be primarily associated with the formation of reversible carbonaceous deposits due to intermediates accumulation onto the catalyst surface.Fil: Di Luca, Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Massa, Paola Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Fenoglio, Rosa Juana. Universidad Nacional de Mar del Plata; ArgentinaFil: Medina Cabello, Francisco. Universitat Rovira I Virgili; EspañaJohn Wiley & Sons Ltd2014-05-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4457Di Luca, Carla; Massa, Paola Andrea; Fenoglio, Rosa Juana; Medina Cabello, Francisco; Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor; John Wiley & Sons Ltd; Journal Of Chemical Technology And Biotechnology; 89; 8; 29-5-2014; 1121-11280268-2575enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/jctb.4412/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1002/jctb.4412info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:17:50Zoai:ri.conicet.gov.ar:11336/4457instacron: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 10:17:51.014CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor
title Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor
spellingShingle Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor
Di Luca, Carla
Cwhpo
Fe2o3/Alumina
Fenton-Like Reaction
Phenol Removal
title_short Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor
title_full Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor
title_fullStr Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor
title_full_unstemmed Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor
title_sort Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor
dc.creator.none.fl_str_mv Di Luca, Carla
Massa, Paola Andrea
Fenoglio, Rosa Juana
Medina Cabello, Francisco
author Di Luca, Carla
author_facet Di Luca, Carla
Massa, Paola Andrea
Fenoglio, Rosa Juana
Medina Cabello, Francisco
author_role author
author2 Massa, Paola Andrea
Fenoglio, Rosa Juana
Medina Cabello, Francisco
author2_role author
author
author
dc.subject.none.fl_str_mv Cwhpo
Fe2o3/Alumina
Fenton-Like Reaction
Phenol Removal
topic Cwhpo
Fe2o3/Alumina
Fenton-Like Reaction
Phenol Removal
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Improved Fe2O3/Al2O3 catalysts were studied for the catalytic oxidation of concentrated phenol solutions (5 g L−1) with H2O2. To enhance catalyst stability, two strategies were investigated: the use of a high calcination temperature and a step of immersion into an organic acid solution. The reaction runs were performed in a continuous reactor at 70°C and atmospheric pressure. RESULTS: For all the catalysts, almost complete phenol degradation was achieved. The mineralization levels were incomplete, reaching 60 and 50% for the catalysts treated with acetic and oxalic acid, respectively. The leaching levels were reduced from 25% (for the untreated catalyst) to 11% after the immersion in oxalic acid. In all cases, the formation of reversible carbonaceous deposits was observed during reaction and a progressive decay in phenol, TOC and H2O2 conversions was registered. CONCLUSION:Catalyst resistance to leaching was significantly enhanced by combining both thermal and acidic treatments. These procedures did not affect the catalytic wet hydrogen peroxide oxidation (CWHPO) performance in terms of mineralization levels. The lixiviation levels were acceptable, taking into account the strong acidic reaction medium. Deactivation processes might be primarily associated with the formation of reversible carbonaceous deposits due to intermediates accumulation onto the catalyst surface.
Fil: Di Luca, Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Massa, Paola Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Fenoglio, Rosa Juana. Universidad Nacional de Mar del Plata; Argentina
Fil: Medina Cabello, Francisco. Universitat Rovira I Virgili; España
description Improved Fe2O3/Al2O3 catalysts were studied for the catalytic oxidation of concentrated phenol solutions (5 g L−1) with H2O2. To enhance catalyst stability, two strategies were investigated: the use of a high calcination temperature and a step of immersion into an organic acid solution. The reaction runs were performed in a continuous reactor at 70°C and atmospheric pressure. RESULTS: For all the catalysts, almost complete phenol degradation was achieved. The mineralization levels were incomplete, reaching 60 and 50% for the catalysts treated with acetic and oxalic acid, respectively. The leaching levels were reduced from 25% (for the untreated catalyst) to 11% after the immersion in oxalic acid. In all cases, the formation of reversible carbonaceous deposits was observed during reaction and a progressive decay in phenol, TOC and H2O2 conversions was registered. CONCLUSION:Catalyst resistance to leaching was significantly enhanced by combining both thermal and acidic treatments. These procedures did not affect the catalytic wet hydrogen peroxide oxidation (CWHPO) performance in terms of mineralization levels. The lixiviation levels were acceptable, taking into account the strong acidic reaction medium. Deactivation processes might be primarily associated with the formation of reversible carbonaceous deposits due to intermediates accumulation onto the catalyst surface.
publishDate 2014
dc.date.none.fl_str_mv 2014-05-29
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/11336/4457
Di Luca, Carla; Massa, Paola Andrea; Fenoglio, Rosa Juana; Medina Cabello, Francisco; Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor; John Wiley & Sons Ltd; Journal Of Chemical Technology And Biotechnology; 89; 8; 29-5-2014; 1121-1128
0268-2575
url http://hdl.handle.net/11336/4457
identifier_str_mv Di Luca, Carla; Massa, Paola Andrea; Fenoglio, Rosa Juana; Medina Cabello, Francisco; Improved Fe2O3/Al2O3 as heterogeneous Fenton catalysts for the oxidation of phenol solutions in a continuous reactor; John Wiley & Sons Ltd; Journal Of Chemical Technology And Biotechnology; 89; 8; 29-5-2014; 1121-1128
0268-2575
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/jctb.4412/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1002/jctb.4412
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 John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons 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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