Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor

Autores
Fenoglio, Rosa Juana; Massa, Paola Andrea; Ivorra, Fernando Daniel; Haure, Patricia Monica
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A large variety of catalytic systems have been studied for the catalytic wet air oxidation of phenolic solutions. Most of them show good activity, but serious stability problems. In this contribution, stability studies were performed over CuO/Al2O3 conventional (CNT) and polytetrafluorethylene coated (C3T) catalysts used for the oxidation of 5 g L-1 phenol solutions in a trickle bed reactor (140 °C and 7 atm of oxygen pressure). For the hydrophilic catalyst, phenol conversion decreased with usage due to the formation of Cu2O and copper oxalate phases. For the wet proofed catalyst, the hydrophobic layer prevented the appearence of those phases, and conversion levels remained practically constant with reaction time. After usage, both catalysts were oxidized at 400 °C and tested for reaction: in the case of the C3T catalyst, the phenol conversion was increased over its initial level; for CNT catalyst, the phenol conversion was also increased, but initial levels were not completely restored. The deactivation mechanism of the CNT catalyst is associated with the formation of the Cu2O and copper oxalate phases during reaction. For catalyst C3T, practically no deactivation was observed.
Fil: Fenoglio, Rosa Juana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Massa, Paola Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Ivorra, Fernando Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Haure, Patricia Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Materia
Copper Oxalate
Cu2o
Cuo Catalysts
Hydrophobic Catalysts
Phenol Oxidation
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:11336/70406
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/70406
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactorFenoglio, Rosa JuanaMassa, Paola AndreaIvorra, Fernando DanielHaure, Patricia MonicaCopper OxalateCu2oCuo CatalystsHydrophobic CatalystsPhenol Oxidationhttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2A large variety of catalytic systems have been studied for the catalytic wet air oxidation of phenolic solutions. Most of them show good activity, but serious stability problems. In this contribution, stability studies were performed over CuO/Al2O3 conventional (CNT) and polytetrafluorethylene coated (C3T) catalysts used for the oxidation of 5 g L-1 phenol solutions in a trickle bed reactor (140 °C and 7 atm of oxygen pressure). For the hydrophilic catalyst, phenol conversion decreased with usage due to the formation of Cu2O and copper oxalate phases. For the wet proofed catalyst, the hydrophobic layer prevented the appearence of those phases, and conversion levels remained practically constant with reaction time. After usage, both catalysts were oxidized at 400 °C and tested for reaction: in the case of the C3T catalyst, the phenol conversion was increased over its initial level; for CNT catalyst, the phenol conversion was also increased, but initial levels were not completely restored. The deactivation mechanism of the CNT catalyst is associated with the formation of the Cu2O and copper oxalate phases during reaction. For catalyst C3T, practically no deactivation was observed.Fil: Fenoglio, Rosa Juana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Massa, Paola Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Ivorra, Fernando Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Haure, Patricia Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaJohn Wiley & Sons Ltd2007-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/70406Fenoglio, Rosa Juana; Massa, Paola Andrea; Ivorra, Fernando Daniel; Haure, Patricia Monica; Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor; John Wiley & Sons Ltd; Journal of Chemical Technology and Biotechnology; 82; 5; 5-2007; 481-4870268-2575CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/jctb.1694info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jctb.1694info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:01Zoai:ri.conicet.gov.ar:11336/70406instacron: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 09:36:01.826CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor
title Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor
spellingShingle Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor
Fenoglio, Rosa Juana
Copper Oxalate
Cu2o
Cuo Catalysts
Hydrophobic Catalysts
Phenol Oxidation
title_short Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor
title_full Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor
title_fullStr Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor
title_full_unstemmed Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor
title_sort Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor
dc.creator.none.fl_str_mv Fenoglio, Rosa Juana
Massa, Paola Andrea
Ivorra, Fernando Daniel
Haure, Patricia Monica
author Fenoglio, Rosa Juana
author_facet Fenoglio, Rosa Juana
Massa, Paola Andrea
Ivorra, Fernando Daniel
Haure, Patricia Monica
author_role author
author2 Massa, Paola Andrea
Ivorra, Fernando Daniel
Haure, Patricia Monica
author2_role author
author
author
dc.subject.none.fl_str_mv Copper Oxalate
Cu2o
Cuo Catalysts
Hydrophobic Catalysts
Phenol Oxidation
topic Copper Oxalate
Cu2o
Cuo Catalysts
Hydrophobic Catalysts
Phenol Oxidation
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A large variety of catalytic systems have been studied for the catalytic wet air oxidation of phenolic solutions. Most of them show good activity, but serious stability problems. In this contribution, stability studies were performed over CuO/Al2O3 conventional (CNT) and polytetrafluorethylene coated (C3T) catalysts used for the oxidation of 5 g L-1 phenol solutions in a trickle bed reactor (140 °C and 7 atm of oxygen pressure). For the hydrophilic catalyst, phenol conversion decreased with usage due to the formation of Cu2O and copper oxalate phases. For the wet proofed catalyst, the hydrophobic layer prevented the appearence of those phases, and conversion levels remained practically constant with reaction time. After usage, both catalysts were oxidized at 400 °C and tested for reaction: in the case of the C3T catalyst, the phenol conversion was increased over its initial level; for CNT catalyst, the phenol conversion was also increased, but initial levels were not completely restored. The deactivation mechanism of the CNT catalyst is associated with the formation of the Cu2O and copper oxalate phases during reaction. For catalyst C3T, practically no deactivation was observed.
Fil: Fenoglio, Rosa Juana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Massa, Paola Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Ivorra, Fernando Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Haure, Patricia Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
description A large variety of catalytic systems have been studied for the catalytic wet air oxidation of phenolic solutions. Most of them show good activity, but serious stability problems. In this contribution, stability studies were performed over CuO/Al2O3 conventional (CNT) and polytetrafluorethylene coated (C3T) catalysts used for the oxidation of 5 g L-1 phenol solutions in a trickle bed reactor (140 °C and 7 atm of oxygen pressure). For the hydrophilic catalyst, phenol conversion decreased with usage due to the formation of Cu2O and copper oxalate phases. For the wet proofed catalyst, the hydrophobic layer prevented the appearence of those phases, and conversion levels remained practically constant with reaction time. After usage, both catalysts were oxidized at 400 °C and tested for reaction: in the case of the C3T catalyst, the phenol conversion was increased over its initial level; for CNT catalyst, the phenol conversion was also increased, but initial levels were not completely restored. The deactivation mechanism of the CNT catalyst is associated with the formation of the Cu2O and copper oxalate phases during reaction. For catalyst C3T, practically no deactivation was observed.
publishDate 2007
dc.date.none.fl_str_mv 2007-05
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/11336/70406
Fenoglio, Rosa Juana; Massa, Paola Andrea; Ivorra, Fernando Daniel; Haure, Patricia Monica; Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor; John Wiley & Sons Ltd; Journal of Chemical Technology and Biotechnology; 82; 5; 5-2007; 481-487
0268-2575
CONICET Digital
CONICET
url http://hdl.handle.net/11336/70406
identifier_str_mv Fenoglio, Rosa Juana; Massa, Paola Andrea; Ivorra, Fernando Daniel; Haure, Patricia Monica; Conventional and wet proofed CuO/Al2O3 catalysts for phenol oxidation: Deactivation studies in a trickle bed reactor; John Wiley & Sons Ltd; Journal of Chemical Technology and Biotechnology; 82; 5; 5-2007; 481-487
0268-2575
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/jctb.1694
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jctb.1694
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
application/pdf
application/pdf
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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