Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts

Autores
Sánchez, María Amparo; Mazzieri, Vanina Alejandra; Grau, Javier Mario; Yori, Juan Carlos; Pieck, Carlos Luis
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Background: The main purpose of the naphtha reforming process is to obtain high octane naphtha, aromatic compounds and hydrogen. The catalysts are bifunctional in nature, having both acid and metal sites. The metal function is supplied by metal particles (Pt with other promoters like Re, Ge, Sn, etc.) deposited on the support. The influence of the addition of Pb to Pt-Re/Al2O3 naphtha reforming catalysts was studied in this work. The catalysts were prepared by co-impregnation and they were characterized by means of temperature programmed reduction, thermal programmed desorption of pyridine and several test reactions such as cyclohexane dehydrogenation, cyclopentane hydrogenolysis and n-heptane reforming. Results: It was found that Pb interacts strongly with the (Pt-Re) active phase producing decay in the metal function activity. Hydrogenolysis is more affected than dehydrogenation. Part of the Pb is deposited over the support decreasing the acidity and the strength of the most acidic sites. Conclusion: The n-heptane reforming reaction shows that Pb modifies the stability and selectivity of the Pt-Re catalysts. Small Pb additions increase the stability and greatly improve the selectivity to C7 isomers and aromatics while they decrease the formation of low value products such as methane and gases.
Fil: Sánchez, María Amparo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Mazzieri, Vanina Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Materia
Naphtha Reforming Catalysts
Pt-Re-Pb/Al2o3
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:11336/53504
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/53504
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalystsSánchez, María AmparoMazzieri, Vanina AlejandraGrau, Javier MarioYori, Juan CarlosPieck, Carlos LuisNaphtha Reforming CatalystsPt-Re-Pb/Al2o3https://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Background: The main purpose of the naphtha reforming process is to obtain high octane naphtha, aromatic compounds and hydrogen. The catalysts are bifunctional in nature, having both acid and metal sites. The metal function is supplied by metal particles (Pt with other promoters like Re, Ge, Sn, etc.) deposited on the support. The influence of the addition of Pb to Pt-Re/Al2O3 naphtha reforming catalysts was studied in this work. The catalysts were prepared by co-impregnation and they were characterized by means of temperature programmed reduction, thermal programmed desorption of pyridine and several test reactions such as cyclohexane dehydrogenation, cyclopentane hydrogenolysis and n-heptane reforming. Results: It was found that Pb interacts strongly with the (Pt-Re) active phase producing decay in the metal function activity. Hydrogenolysis is more affected than dehydrogenation. Part of the Pb is deposited over the support decreasing the acidity and the strength of the most acidic sites. Conclusion: The n-heptane reforming reaction shows that Pb modifies the stability and selectivity of the Pt-Re catalysts. Small Pb additions increase the stability and greatly improve the selectivity to C7 isomers and aromatics while they decrease the formation of low value products such as methane and gases.Fil: Sánchez, María Amparo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Mazzieri, Vanina Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaJohn Wiley & Sons Ltd2011-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/53504Sánchez, María Amparo; Mazzieri, Vanina Alejandra; Grau, Javier Mario; Yori, Juan Carlos; Pieck, Carlos Luis; Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts; John Wiley & Sons Ltd; Journal of Chemical Technology and Biotechnology; 86; 9; 9-2011; 1198-12040268-2575CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/jctb.2633info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jctb.2633info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:32:32Zoai:ri.conicet.gov.ar:11336/53504instacron: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 09:32:32.504CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts
title Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts
spellingShingle Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts
Sánchez, María Amparo
Naphtha Reforming Catalysts
Pt-Re-Pb/Al2o3
title_short Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts
title_full Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts
title_fullStr Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts
title_full_unstemmed Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts
title_sort Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts
dc.creator.none.fl_str_mv Sánchez, María Amparo
Mazzieri, Vanina Alejandra
Grau, Javier Mario
Yori, Juan Carlos
Pieck, Carlos Luis
author Sánchez, María Amparo
author_facet Sánchez, María Amparo
Mazzieri, Vanina Alejandra
Grau, Javier Mario
Yori, Juan Carlos
Pieck, Carlos Luis
author_role author
author2 Mazzieri, Vanina Alejandra
Grau, Javier Mario
Yori, Juan Carlos
Pieck, Carlos Luis
author2_role author
author
author
author
dc.subject.none.fl_str_mv Naphtha Reforming Catalysts
Pt-Re-Pb/Al2o3
topic Naphtha Reforming Catalysts
Pt-Re-Pb/Al2o3
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Background: The main purpose of the naphtha reforming process is to obtain high octane naphtha, aromatic compounds and hydrogen. The catalysts are bifunctional in nature, having both acid and metal sites. The metal function is supplied by metal particles (Pt with other promoters like Re, Ge, Sn, etc.) deposited on the support. The influence of the addition of Pb to Pt-Re/Al2O3 naphtha reforming catalysts was studied in this work. The catalysts were prepared by co-impregnation and they were characterized by means of temperature programmed reduction, thermal programmed desorption of pyridine and several test reactions such as cyclohexane dehydrogenation, cyclopentane hydrogenolysis and n-heptane reforming. Results: It was found that Pb interacts strongly with the (Pt-Re) active phase producing decay in the metal function activity. Hydrogenolysis is more affected than dehydrogenation. Part of the Pb is deposited over the support decreasing the acidity and the strength of the most acidic sites. Conclusion: The n-heptane reforming reaction shows that Pb modifies the stability and selectivity of the Pt-Re catalysts. Small Pb additions increase the stability and greatly improve the selectivity to C7 isomers and aromatics while they decrease the formation of low value products such as methane and gases.
Fil: Sánchez, María Amparo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Mazzieri, Vanina Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
description Background: The main purpose of the naphtha reforming process is to obtain high octane naphtha, aromatic compounds and hydrogen. The catalysts are bifunctional in nature, having both acid and metal sites. The metal function is supplied by metal particles (Pt with other promoters like Re, Ge, Sn, etc.) deposited on the support. The influence of the addition of Pb to Pt-Re/Al2O3 naphtha reforming catalysts was studied in this work. The catalysts were prepared by co-impregnation and they were characterized by means of temperature programmed reduction, thermal programmed desorption of pyridine and several test reactions such as cyclohexane dehydrogenation, cyclopentane hydrogenolysis and n-heptane reforming. Results: It was found that Pb interacts strongly with the (Pt-Re) active phase producing decay in the metal function activity. Hydrogenolysis is more affected than dehydrogenation. Part of the Pb is deposited over the support decreasing the acidity and the strength of the most acidic sites. Conclusion: The n-heptane reforming reaction shows that Pb modifies the stability and selectivity of the Pt-Re catalysts. Small Pb additions increase the stability and greatly improve the selectivity to C7 isomers and aromatics while they decrease the formation of low value products such as methane and gases.
publishDate 2011
dc.date.none.fl_str_mv 2011-09
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/11336/53504
Sánchez, María Amparo; Mazzieri, Vanina Alejandra; Grau, Javier Mario; Yori, Juan Carlos; Pieck, Carlos Luis; Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts; John Wiley & Sons Ltd; Journal of Chemical Technology and Biotechnology; 86; 9; 9-2011; 1198-1204
0268-2575
CONICET Digital
CONICET
url http://hdl.handle.net/11336/53504
identifier_str_mv Sánchez, María Amparo; Mazzieri, Vanina Alejandra; Grau, Javier Mario; Yori, Juan Carlos; Pieck, Carlos Luis; Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts; John Wiley & Sons Ltd; Journal of Chemical Technology and Biotechnology; 86; 9; 9-2011; 1198-1204
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.2633
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jctb.2633
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
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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