Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool

Autores
Busto, Mariana; Dosso, Liza Ainalen; Vera, Carlos Roman; Grau, Javier Mario
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Isomerization-cracking of long paraffins to produce octane enhancers for the gasoline pool is a complex refinery operation that needs simultaneous adjustment of the molecular size of the feed (cracking) and skeletal branching (isomerization). As both reactions are acid-catalyzed it is very difficult to adjust the acidity distribution of a single catalyst to have a proper balance. In this work the used catalyst is a mixture of an isomerization catalyst (Pt/WO3?ZrO2) (PtWZ) and a cracking catalyst (Pt/SO4 2−?ZrO2) (PtSZ), working at the same reaction conditions. The tests were performed using n-hexadecane as a model feedstock. The screening of pressure and temperature conditions indicates that the best match for both catalysts is 20 atm and 225 °C. Stable activity levels for both catalysts can only be achieved at a H2/n-C16 ratio of 10. An adequate space velocity for increasing the yield to iC5?9 and preventing consecutive cracking is 18.4 h−1. At this process conditions mixtures (PtWZ+PtSZ) that contain 25% or 50% PtSZ have a better product distribution, with the maximum displaced to higher carbon numbers, with a reduced yield to isobutane and light gasses. Operation points lie on a monotonic curve of octane number gain (ΔRON) as a function of the yield of light gasses (C1?4) that indicates that RON gains can only be obtained at the expense of the liquid yield.
Fil: Busto, Mariana. 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: Dosso, Liza Ainalen. 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: 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
Materia
composite catalysts
tungsten-zirconia
sulfated-zirconia
n-hexadecane
isomerization-cracking
gasoline
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:11336/268820
Acceder
id CONICETDig_e8352980fb0e07c1ef427857b54ee647
oai_identifier_str oai:ri.conicet.gov.ar:11336/268820
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline poolBusto, MarianaDosso, Liza AinalenVera, Carlos RomanGrau, Javier Mariocomposite catalyststungsten-zirconiasulfated-zirconian-hexadecaneisomerization-crackinggasolinehttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Isomerization-cracking of long paraffins to produce octane enhancers for the gasoline pool is a complex refinery operation that needs simultaneous adjustment of the molecular size of the feed (cracking) and skeletal branching (isomerization). As both reactions are acid-catalyzed it is very difficult to adjust the acidity distribution of a single catalyst to have a proper balance. In this work the used catalyst is a mixture of an isomerization catalyst (Pt/WO3?ZrO2) (PtWZ) and a cracking catalyst (Pt/SO4 2−?ZrO2) (PtSZ), working at the same reaction conditions. The tests were performed using n-hexadecane as a model feedstock. The screening of pressure and temperature conditions indicates that the best match for both catalysts is 20 atm and 225 °C. Stable activity levels for both catalysts can only be achieved at a H2/n-C16 ratio of 10. An adequate space velocity for increasing the yield to iC5?9 and preventing consecutive cracking is 18.4 h−1. At this process conditions mixtures (PtWZ+PtSZ) that contain 25% or 50% PtSZ have a better product distribution, with the maximum displaced to higher carbon numbers, with a reduced yield to isobutane and light gasses. Operation points lie on a monotonic curve of octane number gain (ΔRON) as a function of the yield of light gasses (C1?4) that indicates that RON gains can only be obtained at the expense of the liquid yield.Fil: Busto, Mariana. 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: Dosso, Liza Ainalen. 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: 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"; ArgentinaElsevier Science2012-12info: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/11336/268820Busto, Mariana; Dosso, Liza Ainalen; Vera, Carlos Roman; Grau, Javier Mario; Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool; Elsevier Science; Fuel Processing Technology; 104; 12-2012; 128-1350378-3820CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0378382012001695info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fuproc.2012.04.040info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:02:25Zoai:ri.conicet.gov.ar:11336/268820instacron: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 10:02:25.737CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool
title Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool
spellingShingle Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool
Busto, Mariana
composite catalysts
tungsten-zirconia
sulfated-zirconia
n-hexadecane
isomerization-cracking
gasoline
title_short Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool
title_full Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool
title_fullStr Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool
title_full_unstemmed Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool
title_sort Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool
dc.creator.none.fl_str_mv Busto, Mariana
Dosso, Liza Ainalen
Vera, Carlos Roman
Grau, Javier Mario
author Busto, Mariana
author_facet Busto, Mariana
Dosso, Liza Ainalen
Vera, Carlos Roman
Grau, Javier Mario
author_role author
author2 Dosso, Liza Ainalen
Vera, Carlos Roman
Grau, Javier Mario
author2_role author
author
author
dc.subject.none.fl_str_mv composite catalysts
tungsten-zirconia
sulfated-zirconia
n-hexadecane
isomerization-cracking
gasoline
topic composite catalysts
tungsten-zirconia
sulfated-zirconia
n-hexadecane
isomerization-cracking
gasoline
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Isomerization-cracking of long paraffins to produce octane enhancers for the gasoline pool is a complex refinery operation that needs simultaneous adjustment of the molecular size of the feed (cracking) and skeletal branching (isomerization). As both reactions are acid-catalyzed it is very difficult to adjust the acidity distribution of a single catalyst to have a proper balance. In this work the used catalyst is a mixture of an isomerization catalyst (Pt/WO3?ZrO2) (PtWZ) and a cracking catalyst (Pt/SO4 2−?ZrO2) (PtSZ), working at the same reaction conditions. The tests were performed using n-hexadecane as a model feedstock. The screening of pressure and temperature conditions indicates that the best match for both catalysts is 20 atm and 225 °C. Stable activity levels for both catalysts can only be achieved at a H2/n-C16 ratio of 10. An adequate space velocity for increasing the yield to iC5?9 and preventing consecutive cracking is 18.4 h−1. At this process conditions mixtures (PtWZ+PtSZ) that contain 25% or 50% PtSZ have a better product distribution, with the maximum displaced to higher carbon numbers, with a reduced yield to isobutane and light gasses. Operation points lie on a monotonic curve of octane number gain (ΔRON) as a function of the yield of light gasses (C1?4) that indicates that RON gains can only be obtained at the expense of the liquid yield.
Fil: Busto, Mariana. 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: Dosso, Liza Ainalen. 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: 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
description Isomerization-cracking of long paraffins to produce octane enhancers for the gasoline pool is a complex refinery operation that needs simultaneous adjustment of the molecular size of the feed (cracking) and skeletal branching (isomerization). As both reactions are acid-catalyzed it is very difficult to adjust the acidity distribution of a single catalyst to have a proper balance. In this work the used catalyst is a mixture of an isomerization catalyst (Pt/WO3?ZrO2) (PtWZ) and a cracking catalyst (Pt/SO4 2−?ZrO2) (PtSZ), working at the same reaction conditions. The tests were performed using n-hexadecane as a model feedstock. The screening of pressure and temperature conditions indicates that the best match for both catalysts is 20 atm and 225 °C. Stable activity levels for both catalysts can only be achieved at a H2/n-C16 ratio of 10. An adequate space velocity for increasing the yield to iC5?9 and preventing consecutive cracking is 18.4 h−1. At this process conditions mixtures (PtWZ+PtSZ) that contain 25% or 50% PtSZ have a better product distribution, with the maximum displaced to higher carbon numbers, with a reduced yield to isobutane and light gasses. Operation points lie on a monotonic curve of octane number gain (ΔRON) as a function of the yield of light gasses (C1?4) that indicates that RON gains can only be obtained at the expense of the liquid yield.
publishDate 2012
dc.date.none.fl_str_mv 2012-12
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/11336/268820
Busto, Mariana; Dosso, Liza Ainalen; Vera, Carlos Roman; Grau, Javier Mario; Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool; Elsevier Science; Fuel Processing Technology; 104; 12-2012; 128-135
0378-3820
CONICET Digital
CONICET
url http://hdl.handle.net/11336/268820
identifier_str_mv Busto, Mariana; Dosso, Liza Ainalen; Vera, Carlos Roman; Grau, Javier Mario; Composite catalysts of Pt/SO42--ZrO2 and Pt/WO3-ZrO2 for produce octane enhancers for the gasoline pool; Elsevier Science; Fuel Processing Technology; 104; 12-2012; 128-135
0378-3820
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0378382012001695
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fuproc.2012.04.040
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
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score 13.070432

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