Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins

The objective of this work was to optimize the acid function and metallic function of a Pt-Pd/WO3-ZrO2 catalyst for isomerization-cracking of long paraffins. The calcination temperature and the W content were the preparation variables varied and studied. The catalysts were tested in the reaction of...

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Autores: Busto, Mariana, Benitez, Viviana Monica, Vera, Carlos Roman, Grau, Javier Mario, Yori, Juan Carlos
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/65252
Acceso en línea:http://hdl.handle.net/11336/65252
Access Level:acceso abierto
Palabra clave:Acid Catalysts
Cracking
Isomerization
Long Paraffins
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
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spelling Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffinsBusto, MarianaBenitez, Viviana MonicaVera, Carlos RomanGrau, Javier MarioYori, Juan CarlosAcid CatalystsCrackingIsomerizationLong Paraffinshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The objective of this work was to optimize the acid function and metallic function of a Pt-Pd/WO3-ZrO2 catalyst for isomerization-cracking of long paraffins. The calcination temperature and the W content were the preparation variables varied and studied. The catalysts were tested in the reaction of n-decane isomerization-cracking. The focus of the optimization was put on the synthesis of a catalyst with a good isomerizing activity and a minimum activity for the formation of light gases. In this way an isomerizate of high octane number and high liquid yield would be obtained and used for blending into the gasoline pool. The catalysts were further characterized by temperature programmed desorption of probe molecules (TPD). Varying both the W content and the calcination temperature enabled the regulation of the acid function properties. Thus both the activity and selectivity could be fine-tuned. The highest activity was obtained with the samples with a 15% of W and calcined at 700 °C. The samples calcined at 700 °C were also the most stable ones, i.e. the activity of the acid function was less affected by coking. All the prepared catalysts produced a high octane number gain that was between 75 and 95 points and low yields of light gases (<10%). Deactivation by carbonaceous deposits was attributed to coking on Lewis acid sites.Fil: Busto, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Benitez, Viviana Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaElsevier Science2008-09info: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/11336/65252Busto, Mariana; Benitez, Viviana Monica; Vera, Carlos Roman; Grau, Javier Mario; Yori, Juan Carlos; Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins; Elsevier Science; Applied Catalysis A: General; 347; 2; 9-2008; 117-1250926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2008.06.003info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:37:10Zoai:ri.conicet.gov.ar:11336/65252instacron: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:34982024-05-08 13:37:10.576CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins
title Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins
spellingShingle Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins
Busto, Mariana
Acid Catalysts
Cracking
Isomerization
Long Paraffins
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
title_short Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins
title_full Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins
title_fullStr Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins
title_full_unstemmed Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins
title_sort Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins
dc.creator.none.fl_str_mv Busto, Mariana
Benitez, Viviana Monica
Vera, Carlos Roman
Grau, Javier Mario
Yori, Juan Carlos
author Busto, Mariana
author_facet Busto, Mariana
Benitez, Viviana Monica
Vera, Carlos Roman
Grau, Javier Mario
Yori, Juan Carlos
author_role author
author2 Benitez, Viviana Monica
Vera, Carlos Roman
Grau, Javier Mario
Yori, Juan Carlos
author2_role author
author
author
author
dc.subject.none.fl_str_mv Acid Catalysts
Cracking
Isomerization
Long Paraffins
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
topic Acid Catalysts
Cracking
Isomerization
Long Paraffins
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
description The objective of this work was to optimize the acid function and metallic function of a Pt-Pd/WO3-ZrO2 catalyst for isomerization-cracking of long paraffins. The calcination temperature and the W content were the preparation variables varied and studied. The catalysts were tested in the reaction of n-decane isomerization-cracking. The focus of the optimization was put on the synthesis of a catalyst with a good isomerizing activity and a minimum activity for the formation of light gases. In this way an isomerizate of high octane number and high liquid yield would be obtained and used for blending into the gasoline pool. The catalysts were further characterized by temperature programmed desorption of probe molecules (TPD). Varying both the W content and the calcination temperature enabled the regulation of the acid function properties. Thus both the activity and selectivity could be fine-tuned. The highest activity was obtained with the samples with a 15% of W and calcined at 700 °C. The samples calcined at 700 °C were also the most stable ones, i.e. the activity of the acid function was less affected by coking. All the prepared catalysts produced a high octane number gain that was between 75 and 95 points and low yields of light gases (<10%). Deactivation by carbonaceous deposits was attributed to coking on Lewis acid sites.
publishDate 2008
dc.date.none.fl_str_mv 2008-09
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/11336/65252
Busto, Mariana; Benitez, Viviana Monica; Vera, Carlos Roman; Grau, Javier Mario; Yori, Juan Carlos; Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins; Elsevier Science; Applied Catalysis A: General; 347; 2; 9-2008; 117-125
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/65252
identifier_str_mv Busto, Mariana; Benitez, Viviana Monica; Vera, Carlos Roman; Grau, Javier Mario; Yori, Juan Carlos; Pt-Pd/WO3-ZrO2 catalysts for isomerization-cracking of long paraffins; Elsevier Science; Applied Catalysis A: General; 347; 2; 9-2008; 117-125
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.2008.06.003
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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15,812429

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