Influence of additives on the Pt metal activity of naphtha reforming catalysts

Autores
Mazzieri, Vanina Alejandra; Grau, Javier Mario; Yori, Juan Carlos; Vera, Carlos Roman; Pieck, Carlos Luis
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Alumina supported bimetallic Pt-Re, Pt-Sn and Pt-Ge naphtha reforming catalysts were studied. The Pt concentration was kept constant at 0.3% (weight basis) while the concentration of the second metal was varied in order to assess its influence. The experimental results showed that the addition of a second metal (Re, Sn, Ge) to the Pt catalyst produces a modification of the metal and acid functions. Sn and Ge produce similar modifications of the metal function: a marked decrease of the dehydrogenation and hydrogenolytic capacity of Pt. The addition of Re modifies the dehydrogenation capacity to a lower extent than the addition of Sn or Ge. The hydrogenolytic capacity is increased upon Re addition. The changes on the acid function are different depending on which metal is added. Re and Ge modify the acid strength distribution; they favor the formation of sites of lower acid strength but they keep the total concentration of acid sites almost constant. Conversely Sn addition not only produces a change in the acid strength distribution but also a decrease of the total acidity of the catalyst.
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: Vera, Carlos Roman. 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
Bimetallic Catalysts
Naphtha Reforming
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:11336/57138
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/57138
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Influence of additives on the Pt metal activity of naphtha reforming catalystsMazzieri, Vanina AlejandraGrau, Javier MarioYori, Juan CarlosVera, Carlos RomanPieck, Carlos LuisBimetallic CatalystsNaphtha Reforminghttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2Alumina supported bimetallic Pt-Re, Pt-Sn and Pt-Ge naphtha reforming catalysts were studied. The Pt concentration was kept constant at 0.3% (weight basis) while the concentration of the second metal was varied in order to assess its influence. The experimental results showed that the addition of a second metal (Re, Sn, Ge) to the Pt catalyst produces a modification of the metal and acid functions. Sn and Ge produce similar modifications of the metal function: a marked decrease of the dehydrogenation and hydrogenolytic capacity of Pt. The addition of Re modifies the dehydrogenation capacity to a lower extent than the addition of Sn or Ge. The hydrogenolytic capacity is increased upon Re addition. The changes on the acid function are different depending on which metal is added. Re and Ge modify the acid strength distribution; they favor the formation of sites of lower acid strength but they keep the total concentration of acid sites almost constant. Conversely Sn addition not only produces a change in the acid strength distribution but also a decrease of the total acidity of the catalyst.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"; 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: Vera, Carlos Roman. 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"; ArgentinaElsevier Science2009-02info: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/11336/57138Mazzieri, Vanina Alejandra; Grau, Javier Mario; Yori, Juan Carlos; Vera, Carlos Roman; Pieck, Carlos Luis; Influence of additives on the Pt metal activity of naphtha reforming catalysts; Elsevier Science; Applied Catalysis A: General; 354; 1-2; 2-2009; 161-1680926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2008.11.031info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:27:47Zoai:ri.conicet.gov.ar:11336/57138instacron: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:34982025-10-15 15:27:47.797CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of additives on the Pt metal activity of naphtha reforming catalysts
title Influence of additives on the Pt metal activity of naphtha reforming catalysts
spellingShingle Influence of additives on the Pt metal activity of naphtha reforming catalysts
Mazzieri, Vanina Alejandra
Bimetallic Catalysts
Naphtha Reforming
title_short Influence of additives on the Pt metal activity of naphtha reforming catalysts
title_full Influence of additives on the Pt metal activity of naphtha reforming catalysts
title_fullStr Influence of additives on the Pt metal activity of naphtha reforming catalysts
title_full_unstemmed Influence of additives on the Pt metal activity of naphtha reforming catalysts
title_sort Influence of additives on the Pt metal activity of naphtha reforming catalysts
dc.creator.none.fl_str_mv Mazzieri, Vanina Alejandra
Grau, Javier Mario
Yori, Juan Carlos
Vera, Carlos Roman
Pieck, Carlos Luis
author Mazzieri, Vanina Alejandra
author_facet Mazzieri, Vanina Alejandra
Grau, Javier Mario
Yori, Juan Carlos
Vera, Carlos Roman
Pieck, Carlos Luis
author_role author
author2 Grau, Javier Mario
Yori, Juan Carlos
Vera, Carlos Roman
Pieck, Carlos Luis
author2_role author
author
author
author
dc.subject.none.fl_str_mv Bimetallic Catalysts
Naphtha Reforming
topic Bimetallic Catalysts
Naphtha Reforming
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Alumina supported bimetallic Pt-Re, Pt-Sn and Pt-Ge naphtha reforming catalysts were studied. The Pt concentration was kept constant at 0.3% (weight basis) while the concentration of the second metal was varied in order to assess its influence. The experimental results showed that the addition of a second metal (Re, Sn, Ge) to the Pt catalyst produces a modification of the metal and acid functions. Sn and Ge produce similar modifications of the metal function: a marked decrease of the dehydrogenation and hydrogenolytic capacity of Pt. The addition of Re modifies the dehydrogenation capacity to a lower extent than the addition of Sn or Ge. The hydrogenolytic capacity is increased upon Re addition. The changes on the acid function are different depending on which metal is added. Re and Ge modify the acid strength distribution; they favor the formation of sites of lower acid strength but they keep the total concentration of acid sites almost constant. Conversely Sn addition not only produces a change in the acid strength distribution but also a decrease of the total acidity of the catalyst.
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: Vera, Carlos Roman. 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 Alumina supported bimetallic Pt-Re, Pt-Sn and Pt-Ge naphtha reforming catalysts were studied. The Pt concentration was kept constant at 0.3% (weight basis) while the concentration of the second metal was varied in order to assess its influence. The experimental results showed that the addition of a second metal (Re, Sn, Ge) to the Pt catalyst produces a modification of the metal and acid functions. Sn and Ge produce similar modifications of the metal function: a marked decrease of the dehydrogenation and hydrogenolytic capacity of Pt. The addition of Re modifies the dehydrogenation capacity to a lower extent than the addition of Sn or Ge. The hydrogenolytic capacity is increased upon Re addition. The changes on the acid function are different depending on which metal is added. Re and Ge modify the acid strength distribution; they favor the formation of sites of lower acid strength but they keep the total concentration of acid sites almost constant. Conversely Sn addition not only produces a change in the acid strength distribution but also a decrease of the total acidity of the catalyst.
publishDate 2009
dc.date.none.fl_str_mv 2009-02
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/11336/57138
Mazzieri, Vanina Alejandra; Grau, Javier Mario; Yori, Juan Carlos; Vera, Carlos Roman; Pieck, Carlos Luis; Influence of additives on the Pt metal activity of naphtha reforming catalysts; Elsevier Science; Applied Catalysis A: General; 354; 1-2; 2-2009; 161-168
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/57138
identifier_str_mv Mazzieri, Vanina Alejandra; Grau, Javier Mario; Yori, Juan Carlos; Vera, Carlos Roman; Pieck, Carlos Luis; Influence of additives on the Pt metal activity of naphtha reforming catalysts; Elsevier Science; Applied Catalysis A: General; 354; 1-2; 2-2009; 161-168
0926-860X
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/j.apcata.2008.11.031
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 Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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_ 1846083419423899648
score 13.22299

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