Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba

Autores
Siri, Guillermo Jorge; Bertolini, Guillermo Ramon; Ferretti, Osmar Alberto
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The behavior of catalysts based on Pt/ -Al2O3 is analyzed in the CO oxidation reaction. Experiments were performed in the temperature range between 50°C and 250°C with a feed H2 rich, and a concentration of 1% CO and 0.6% O2 Catalysts studied were: monometallic Pt/ -Al2O3, bimetallic PtSn/ -Al2O3 with a ratio Sn/Pt=1.6 at/at and two catalysts prepared by modification of the last one with K or Ba. The catalyst that showed maximum activity and selectivity levels is the PtSnK/ -Al2O3. The tin addition increases the activity which allows the reaction to occur at lower temperatures due to the decrease in the CO-Pt interaction. The addition of K or Ba produces a subsequent improvement with respect to the CO oxidation temperature, which leads to a selectivity increase. The selectivity of the CO oxidation passes through a maximum value as a function of the temperature. This maximum is explained by the importance acquired by the reverse of water gas shift reaction at temperatures near 200ºC
Fil: Siri, Guillermo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Bertolini, Guillermo Ramon. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Ferretti, Osmar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Materia
Preferential Oxidation
Hydrogen Purification
Ptsn/ -Al2o3
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/16655
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/16655
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or BaSiri, Guillermo JorgeBertolini, Guillermo RamonFerretti, Osmar AlbertoPreferential OxidationHydrogen PurificationPtsn/ -Al2o3https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The behavior of catalysts based on Pt/ -Al2O3 is analyzed in the CO oxidation reaction. Experiments were performed in the temperature range between 50°C and 250°C with a feed H2 rich, and a concentration of 1% CO and 0.6% O2 Catalysts studied were: monometallic Pt/ -Al2O3, bimetallic PtSn/ -Al2O3 with a ratio Sn/Pt=1.6 at/at and two catalysts prepared by modification of the last one with K or Ba. The catalyst that showed maximum activity and selectivity levels is the PtSnK/ -Al2O3. The tin addition increases the activity which allows the reaction to occur at lower temperatures due to the decrease in the CO-Pt interaction. The addition of K or Ba produces a subsequent improvement with respect to the CO oxidation temperature, which leads to a selectivity increase. The selectivity of the CO oxidation passes through a maximum value as a function of the temperature. This maximum is explained by the importance acquired by the reverse of water gas shift reaction at temperatures near 200ºCFil: Siri, Guillermo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Bertolini, Guillermo Ramon. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Ferretti, Osmar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaPlanta Piloto de Ingeniería Química2007-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/16655Siri, Guillermo Jorge; Bertolini, Guillermo Ramon; Ferretti, Osmar Alberto; Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba; Planta Piloto de Ingeniería Química; Latin American Applied Research; 37; 4; 12-2007; 275-2810327-07931851-8796enginfo:eu-repo/semantics/altIdentifier/url/http://www.laar.uns.edu.ar/indexes/artic_v3704/Vol37_4_275.pdfinfo:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/4n84hsinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-29T11:17:02Zoai:ri.conicet.gov.ar:11336/16655instacron: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:34982025-10-29 11:17:02.631CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba
title Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba
spellingShingle Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba
Siri, Guillermo Jorge
Preferential Oxidation
Hydrogen Purification
Ptsn/ -Al2o3
title_short Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba
title_full Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba
title_fullStr Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba
title_full_unstemmed Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba
title_sort Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba
dc.creator.none.fl_str_mv Siri, Guillermo Jorge
Bertolini, Guillermo Ramon
Ferretti, Osmar Alberto
author Siri, Guillermo Jorge
author_facet Siri, Guillermo Jorge
Bertolini, Guillermo Ramon
Ferretti, Osmar Alberto
author_role author
author2 Bertolini, Guillermo Ramon
Ferretti, Osmar Alberto
author2_role author
author
dc.subject.none.fl_str_mv Preferential Oxidation
Hydrogen Purification
Ptsn/ -Al2o3
topic Preferential Oxidation
Hydrogen Purification
Ptsn/ -Al2o3
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The behavior of catalysts based on Pt/ -Al2O3 is analyzed in the CO oxidation reaction. Experiments were performed in the temperature range between 50°C and 250°C with a feed H2 rich, and a concentration of 1% CO and 0.6% O2 Catalysts studied were: monometallic Pt/ -Al2O3, bimetallic PtSn/ -Al2O3 with a ratio Sn/Pt=1.6 at/at and two catalysts prepared by modification of the last one with K or Ba. The catalyst that showed maximum activity and selectivity levels is the PtSnK/ -Al2O3. The tin addition increases the activity which allows the reaction to occur at lower temperatures due to the decrease in the CO-Pt interaction. The addition of K or Ba produces a subsequent improvement with respect to the CO oxidation temperature, which leads to a selectivity increase. The selectivity of the CO oxidation passes through a maximum value as a function of the temperature. This maximum is explained by the importance acquired by the reverse of water gas shift reaction at temperatures near 200ºC
Fil: Siri, Guillermo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Bertolini, Guillermo Ramon. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Ferretti, Osmar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
description The behavior of catalysts based on Pt/ -Al2O3 is analyzed in the CO oxidation reaction. Experiments were performed in the temperature range between 50°C and 250°C with a feed H2 rich, and a concentration of 1% CO and 0.6% O2 Catalysts studied were: monometallic Pt/ -Al2O3, bimetallic PtSn/ -Al2O3 with a ratio Sn/Pt=1.6 at/at and two catalysts prepared by modification of the last one with K or Ba. The catalyst that showed maximum activity and selectivity levels is the PtSnK/ -Al2O3. The tin addition increases the activity which allows the reaction to occur at lower temperatures due to the decrease in the CO-Pt interaction. The addition of K or Ba produces a subsequent improvement with respect to the CO oxidation temperature, which leads to a selectivity increase. The selectivity of the CO oxidation passes through a maximum value as a function of the temperature. This maximum is explained by the importance acquired by the reverse of water gas shift reaction at temperatures near 200ºC
publishDate 2007
dc.date.none.fl_str_mv 2007-12
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/11336/16655
Siri, Guillermo Jorge; Bertolini, Guillermo Ramon; Ferretti, Osmar Alberto; Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba; Planta Piloto de Ingeniería Química; Latin American Applied Research; 37; 4; 12-2007; 275-281
0327-0793
1851-8796
url http://hdl.handle.net/11336/16655
identifier_str_mv Siri, Guillermo Jorge; Bertolini, Guillermo Ramon; Ferretti, Osmar Alberto; Preferential oxidation of CO in presence of H2. Behavior of PtSn/g-Al2O3 catalysts modified by K or Ba; Planta Piloto de Ingeniería Química; Latin American Applied Research; 37; 4; 12-2007; 275-281
0327-0793
1851-8796
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.laar.uns.edu.ar/indexes/artic_v3704/Vol37_4_275.pdf
info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/4n84hs
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Planta Piloto de Ingeniería Química
publisher.none.fl_str_mv Planta Piloto de Ingeniería Química
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
_version_ 1847426071295688704
score 13.10058

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