Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance

Autores
Grau, Javier Mario; Yori, Juan Carlos; Parera, Jose
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The hydroconversion (isomerization–cracking) of n-octane was studied at 300°C, 1.5 MPa, WHSV=4 and H2/nC8=6 using oxoanion promoted zirconia with different Pt concentrations (0.1, 0.5 and 1%) as catalysts. Tungstate was added to zirconia by impregnation with ammonium meta-tungstate or tungstic acid solutions and calcined at 800°C. Sulfate was added by impregnation with 2N H2SO4 and calcined at 620°C. Isooctanes are intermediate products that are cracked to C3–C5 alkanes with predominance of isoalkanes. Sulfate zirconia is the most active and selective catalyst to cracking products. The addition of 0.1% of Pt produces an increase in activity and stability, respect of the support without metal. However, the increase in Pt content (0.5 and 1.0%) produces a decrease in nC8 conversion and in cracking products. The metallic properties of Pt are decreased by its strong interaction with the support, mainly with sulfate zirconia; at the same time, Pt decreases the acid cracking activity of the support.
Fil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; 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 ; Argentina
Fil: Parera, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Materia
Tungstate–Zirconia
Sulfate–Zirconia
Pt Load Influence
N-Octane
Hydroisomerization–Cracking
Light Isomers
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:11336/39278
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/39278
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performanceGrau, Javier MarioYori, Juan CarlosParera, JoseTungstate–ZirconiaSulfate–ZirconiaPt Load InfluenceN-OctaneHydroisomerization–CrackingLight Isomershttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The hydroconversion (isomerization–cracking) of n-octane was studied at 300°C, 1.5 MPa, WHSV=4 and H2/nC8=6 using oxoanion promoted zirconia with different Pt concentrations (0.1, 0.5 and 1%) as catalysts. Tungstate was added to zirconia by impregnation with ammonium meta-tungstate or tungstic acid solutions and calcined at 800°C. Sulfate was added by impregnation with 2N H2SO4 and calcined at 620°C. Isooctanes are intermediate products that are cracked to C3–C5 alkanes with predominance of isoalkanes. Sulfate zirconia is the most active and selective catalyst to cracking products. The addition of 0.1% of Pt produces an increase in activity and stability, respect of the support without metal. However, the increase in Pt content (0.5 and 1.0%) produces a decrease in nC8 conversion and in cracking products. The metallic properties of Pt are decreased by its strong interaction with the support, mainly with sulfate zirconia; at the same time, Pt decreases the acid cracking activity of the support.Fil: 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 ; ArgentinaFil: Parera, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaElsevier Science2001-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/39278Grau, Javier Mario; Yori, Juan Carlos; Parera, Jose; Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance; Elsevier Science; Applied Catalysis A: General; 213; 2; 5-2001; 247-2570926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0926-860X(00)00901-7info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926860X00009017info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-05T09:51:59Zoai:ri.conicet.gov.ar:11336/39278instacron: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:34982025-11-05 09:51:59.419CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance
title Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance
spellingShingle Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance
Grau, Javier Mario
Tungstate–Zirconia
Sulfate–Zirconia
Pt Load Influence
N-Octane
Hydroisomerization–Cracking
Light Isomers
title_short Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance
title_full Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance
title_fullStr Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance
title_full_unstemmed Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance
title_sort Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance
dc.creator.none.fl_str_mv Grau, Javier Mario
Yori, Juan Carlos
Parera, Jose
author Grau, Javier Mario
author_facet Grau, Javier Mario
Yori, Juan Carlos
Parera, Jose
author_role author
author2 Yori, Juan Carlos
Parera, Jose
author2_role author
author
dc.subject.none.fl_str_mv Tungstate–Zirconia
Sulfate–Zirconia
Pt Load Influence
N-Octane
Hydroisomerization–Cracking
Light Isomers
topic Tungstate–Zirconia
Sulfate–Zirconia
Pt Load Influence
N-Octane
Hydroisomerization–Cracking
Light Isomers
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The hydroconversion (isomerization–cracking) of n-octane was studied at 300°C, 1.5 MPa, WHSV=4 and H2/nC8=6 using oxoanion promoted zirconia with different Pt concentrations (0.1, 0.5 and 1%) as catalysts. Tungstate was added to zirconia by impregnation with ammonium meta-tungstate or tungstic acid solutions and calcined at 800°C. Sulfate was added by impregnation with 2N H2SO4 and calcined at 620°C. Isooctanes are intermediate products that are cracked to C3–C5 alkanes with predominance of isoalkanes. Sulfate zirconia is the most active and selective catalyst to cracking products. The addition of 0.1% of Pt produces an increase in activity and stability, respect of the support without metal. However, the increase in Pt content (0.5 and 1.0%) produces a decrease in nC8 conversion and in cracking products. The metallic properties of Pt are decreased by its strong interaction with the support, mainly with sulfate zirconia; at the same time, Pt decreases the acid cracking activity of the support.
Fil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; 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 ; Argentina
Fil: Parera, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
description The hydroconversion (isomerization–cracking) of n-octane was studied at 300°C, 1.5 MPa, WHSV=4 and H2/nC8=6 using oxoanion promoted zirconia with different Pt concentrations (0.1, 0.5 and 1%) as catalysts. Tungstate was added to zirconia by impregnation with ammonium meta-tungstate or tungstic acid solutions and calcined at 800°C. Sulfate was added by impregnation with 2N H2SO4 and calcined at 620°C. Isooctanes are intermediate products that are cracked to C3–C5 alkanes with predominance of isoalkanes. Sulfate zirconia is the most active and selective catalyst to cracking products. The addition of 0.1% of Pt produces an increase in activity and stability, respect of the support without metal. However, the increase in Pt content (0.5 and 1.0%) produces a decrease in nC8 conversion and in cracking products. The metallic properties of Pt are decreased by its strong interaction with the support, mainly with sulfate zirconia; at the same time, Pt decreases the acid cracking activity of the support.
publishDate 2001
dc.date.none.fl_str_mv 2001-05
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/11336/39278
Grau, Javier Mario; Yori, Juan Carlos; Parera, Jose; Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance; Elsevier Science; Applied Catalysis A: General; 213; 2; 5-2001; 247-257
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/39278
identifier_str_mv Grau, Javier Mario; Yori, Juan Carlos; Parera, Jose; Hydroisomerization–cracking of n-octane on Pt/WO42−–ZrO2 and Pt/SO42−–ZrO2: Effect of Pt load on catalyst performance; Elsevier Science; Applied Catalysis A: General; 213; 2; 5-2001; 247-257
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/S0926-860X(00)00901-7
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926860X00009017
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
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
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score 13.087074

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