Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts

Autores
D'ippolito, Silvana Andrea; Gutierrez, Laura Beatriz; Pieck, Carlos Ariel
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aim of this study was to study the ring opening of decalin at 300 and 350 °C using Pt-Ir/HY zeolite catalysts. Monometallic Ir(x = 1.0, 1.5%wt) and Pt(y = 1.0, 1.5%wt) and bimetallic Ir(1.0)Pt(y = 0.5, 1.0, 1.5%wt), Ir(1.5)Pt(y = 0.5, 1.0, 1.5%wt) catalysts were prepared and catalytically tested. Catalysts were characterized by TPR, pyridine TPD, CO-FTIR, cyclohexane dehydrogenation and cyclopentane hydrogenolysis activity. It was found that the acidic character of Ir oxides species increased the amount of strong acid sites of the support. On the other hand, the Pt content increase favored the formation of medium strength acid sites. The catalysts with higher content of Ir had the higher hydrogenolytic activity, while an increase in the Pt content decreased the hydrogenolytic activity. The presence of Pt promoted the dehydrogenation of cyclohexane. Higher yields of dehydrogenated products and increased conversion of cis-decalin were observed at the highest temperature level. It seems that catalysts Ir(1.0)Pt(1.0) at 350 °C and Ir(1.5)Pt(1.5) at 300 °C, which showed a good performance, have an adequate balance between metal and acid functions that favors the opening of naphthenic rings.
Fil: D'ippolito, Silvana Andrea. 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: Gutierrez, Laura Beatriz. 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 Ariel. 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
Sro Decalin
Ir-Pt/Hy Zeolite
Diesel
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:11336/53012
Acceder
id CONICETDig_b7e48bf62b4761f163950577db04994f
oai_identifier_str oai:ri.conicet.gov.ar:11336/53012
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalystsD'ippolito, Silvana AndreaGutierrez, Laura BeatrizPieck, Carlos ArielSro DecalinIr-Pt/Hy ZeoliteDieselhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The aim of this study was to study the ring opening of decalin at 300 and 350 °C using Pt-Ir/HY zeolite catalysts. Monometallic Ir(x = 1.0, 1.5%wt) and Pt(y = 1.0, 1.5%wt) and bimetallic Ir(1.0)Pt(y = 0.5, 1.0, 1.5%wt), Ir(1.5)Pt(y = 0.5, 1.0, 1.5%wt) catalysts were prepared and catalytically tested. Catalysts were characterized by TPR, pyridine TPD, CO-FTIR, cyclohexane dehydrogenation and cyclopentane hydrogenolysis activity. It was found that the acidic character of Ir oxides species increased the amount of strong acid sites of the support. On the other hand, the Pt content increase favored the formation of medium strength acid sites. The catalysts with higher content of Ir had the higher hydrogenolytic activity, while an increase in the Pt content decreased the hydrogenolytic activity. The presence of Pt promoted the dehydrogenation of cyclohexane. Higher yields of dehydrogenated products and increased conversion of cis-decalin were observed at the highest temperature level. It seems that catalysts Ir(1.0)Pt(1.0) at 350 °C and Ir(1.5)Pt(1.5) at 300 °C, which showed a good performance, have an adequate balance between metal and acid functions that favors the opening of naphthenic rings.Fil: D'ippolito, Silvana Andrea. 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: Gutierrez, Laura Beatriz. 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 Ariel. 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 Science2012-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/53012D'ippolito, Silvana Andrea; Gutierrez, Laura Beatriz; Pieck, Carlos Ariel; Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts; Elsevier Science; Applied Catalysis A: General; 445; 6-2012; 195-2030926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2012.08.037info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:26:02Zoai:ri.conicet.gov.ar:11336/53012instacron: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 10:26:02.601CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts
title Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts
spellingShingle Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts
D'ippolito, Silvana Andrea
Sro Decalin
Ir-Pt/Hy Zeolite
Diesel
title_short Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts
title_full Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts
title_fullStr Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts
title_full_unstemmed Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts
title_sort Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts
dc.creator.none.fl_str_mv D'ippolito, Silvana Andrea
Gutierrez, Laura Beatriz
Pieck, Carlos Ariel
author D'ippolito, Silvana Andrea
author_facet D'ippolito, Silvana Andrea
Gutierrez, Laura Beatriz
Pieck, Carlos Ariel
author_role author
author2 Gutierrez, Laura Beatriz
Pieck, Carlos Ariel
author2_role author
author
dc.subject.none.fl_str_mv Sro Decalin
Ir-Pt/Hy Zeolite
Diesel
topic Sro Decalin
Ir-Pt/Hy Zeolite
Diesel
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 aim of this study was to study the ring opening of decalin at 300 and 350 °C using Pt-Ir/HY zeolite catalysts. Monometallic Ir(x = 1.0, 1.5%wt) and Pt(y = 1.0, 1.5%wt) and bimetallic Ir(1.0)Pt(y = 0.5, 1.0, 1.5%wt), Ir(1.5)Pt(y = 0.5, 1.0, 1.5%wt) catalysts were prepared and catalytically tested. Catalysts were characterized by TPR, pyridine TPD, CO-FTIR, cyclohexane dehydrogenation and cyclopentane hydrogenolysis activity. It was found that the acidic character of Ir oxides species increased the amount of strong acid sites of the support. On the other hand, the Pt content increase favored the formation of medium strength acid sites. The catalysts with higher content of Ir had the higher hydrogenolytic activity, while an increase in the Pt content decreased the hydrogenolytic activity. The presence of Pt promoted the dehydrogenation of cyclohexane. Higher yields of dehydrogenated products and increased conversion of cis-decalin were observed at the highest temperature level. It seems that catalysts Ir(1.0)Pt(1.0) at 350 °C and Ir(1.5)Pt(1.5) at 300 °C, which showed a good performance, have an adequate balance between metal and acid functions that favors the opening of naphthenic rings.
Fil: D'ippolito, Silvana Andrea. 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: Gutierrez, Laura Beatriz. 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 Ariel. 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 The aim of this study was to study the ring opening of decalin at 300 and 350 °C using Pt-Ir/HY zeolite catalysts. Monometallic Ir(x = 1.0, 1.5%wt) and Pt(y = 1.0, 1.5%wt) and bimetallic Ir(1.0)Pt(y = 0.5, 1.0, 1.5%wt), Ir(1.5)Pt(y = 0.5, 1.0, 1.5%wt) catalysts were prepared and catalytically tested. Catalysts were characterized by TPR, pyridine TPD, CO-FTIR, cyclohexane dehydrogenation and cyclopentane hydrogenolysis activity. It was found that the acidic character of Ir oxides species increased the amount of strong acid sites of the support. On the other hand, the Pt content increase favored the formation of medium strength acid sites. The catalysts with higher content of Ir had the higher hydrogenolytic activity, while an increase in the Pt content decreased the hydrogenolytic activity. The presence of Pt promoted the dehydrogenation of cyclohexane. Higher yields of dehydrogenated products and increased conversion of cis-decalin were observed at the highest temperature level. It seems that catalysts Ir(1.0)Pt(1.0) at 350 °C and Ir(1.5)Pt(1.5) at 300 °C, which showed a good performance, have an adequate balance between metal and acid functions that favors the opening of naphthenic rings.
publishDate 2012
dc.date.none.fl_str_mv 2012-06
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/11336/53012
D'ippolito, Silvana Andrea; Gutierrez, Laura Beatriz; Pieck, Carlos Ariel; Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts; Elsevier Science; Applied Catalysis A: General; 445; 6-2012; 195-203
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/53012
identifier_str_mv D'ippolito, Silvana Andrea; Gutierrez, Laura Beatriz; Pieck, Carlos Ariel; Optimal Ir/Pt ratio for the ring opening of decalin in zeolite supported catalysts; Elsevier Science; Applied Catalysis A: General; 445; 6-2012; 195-203
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.2012.08.037
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
_version_ 1844614260649361408
score 13.070432

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