Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3

Autores
Lago, Camila Desire; Decolatti, Hernán Pablo; Tonutti, Lucas Gabriel; Dalla Costa, Bruno Oscar; Querini, Carlos Alberto
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Modified H-ZSM-5 zeolite catalysts were studied for the dehydration of glycerol to acrolein in gas phase. The modifications were made by alkaline treatment using Na2CO3 solutions in different concentrations, followed by consecutive ion exchanges with NH4NO3 solution in order to recover the acidic form of the materials. The mild conditions selected (alkali concentrations, time and temperature) allowed to preserve the crystallinity and framework characteristic in the zeolite, selectively removing silicon while maintaining practically all the aluminum content. This process has important advantages over the alkaline treatment with NaOH (at an equivalent pH), such as high selectivity to remove silicon instead of aluminum, and in addition the yield of synthesized material respect to the initial mass is markedly higher (80% vs 50%). This treatment with Na2CO3 solutions leads to multiple positive effects as: increments in the mesoporosity and external surface area; and changes in the nature and accessibility to the acid active sites. The catalytic activity and selectivity were greatly improved. Further, the deactivation by coke deposition was attenuated.
Fil: Lago, Camila Desire. 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: Decolatti, Hernán Pablo. 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: Tonutti, Lucas Gabriel. 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: Dalla Costa, Bruno Oscar. 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: Querini, Carlos Alberto. 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
ALKALINE TREATMENT
GLYCEROL DEHYDRATION
H-ZSM-5
SODIUM CARBONATE
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:11336/88472
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/88472
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3Lago, Camila DesireDecolatti, Hernán PabloTonutti, Lucas GabrielDalla Costa, Bruno OscarQuerini, Carlos AlbertoALKALINE TREATMENTGLYCEROL DEHYDRATIONH-ZSM-5SODIUM CARBONATEhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Modified H-ZSM-5 zeolite catalysts were studied for the dehydration of glycerol to acrolein in gas phase. The modifications were made by alkaline treatment using Na2CO3 solutions in different concentrations, followed by consecutive ion exchanges with NH4NO3 solution in order to recover the acidic form of the materials. The mild conditions selected (alkali concentrations, time and temperature) allowed to preserve the crystallinity and framework characteristic in the zeolite, selectively removing silicon while maintaining practically all the aluminum content. This process has important advantages over the alkaline treatment with NaOH (at an equivalent pH), such as high selectivity to remove silicon instead of aluminum, and in addition the yield of synthesized material respect to the initial mass is markedly higher (80% vs 50%). This treatment with Na2CO3 solutions leads to multiple positive effects as: increments in the mesoporosity and external surface area; and changes in the nature and accessibility to the acid active sites. The catalytic activity and selectivity were greatly improved. Further, the deactivation by coke deposition was attenuated.Fil: Lago, Camila Desire. 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: Decolatti, Hernán Pablo. 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: Tonutti, Lucas Gabriel. 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: Dalla Costa, Bruno Oscar. 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: Querini, Carlos Alberto. 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"; ArgentinaAcademic Press Inc Elsevier Science2018-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/88472Lago, Camila Desire; Decolatti, Hernán Pablo; Tonutti, Lucas Gabriel; Dalla Costa, Bruno Oscar; Querini, Carlos Alberto; Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3; Academic Press Inc Elsevier Science; Journal of Catalysis; 366; 10-2018; 16-270021-9517CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0021951718302999info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcat.2018.07.036info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:26:08Zoai:ri.conicet.gov.ar:11336/88472instacron: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 14:26:08.465CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3
title Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3
spellingShingle Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3
Lago, Camila Desire
ALKALINE TREATMENT
GLYCEROL DEHYDRATION
H-ZSM-5
SODIUM CARBONATE
title_short Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3
title_full Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3
title_fullStr Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3
title_full_unstemmed Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3
title_sort Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3
dc.creator.none.fl_str_mv Lago, Camila Desire
Decolatti, Hernán Pablo
Tonutti, Lucas Gabriel
Dalla Costa, Bruno Oscar
Querini, Carlos Alberto
author Lago, Camila Desire
author_facet Lago, Camila Desire
Decolatti, Hernán Pablo
Tonutti, Lucas Gabriel
Dalla Costa, Bruno Oscar
Querini, Carlos Alberto
author_role author
author2 Decolatti, Hernán Pablo
Tonutti, Lucas Gabriel
Dalla Costa, Bruno Oscar
Querini, Carlos Alberto
author2_role author
author
author
author
dc.subject.none.fl_str_mv ALKALINE TREATMENT
GLYCEROL DEHYDRATION
H-ZSM-5
SODIUM CARBONATE
topic ALKALINE TREATMENT
GLYCEROL DEHYDRATION
H-ZSM-5
SODIUM CARBONATE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Modified H-ZSM-5 zeolite catalysts were studied for the dehydration of glycerol to acrolein in gas phase. The modifications were made by alkaline treatment using Na2CO3 solutions in different concentrations, followed by consecutive ion exchanges with NH4NO3 solution in order to recover the acidic form of the materials. The mild conditions selected (alkali concentrations, time and temperature) allowed to preserve the crystallinity and framework characteristic in the zeolite, selectively removing silicon while maintaining practically all the aluminum content. This process has important advantages over the alkaline treatment with NaOH (at an equivalent pH), such as high selectivity to remove silicon instead of aluminum, and in addition the yield of synthesized material respect to the initial mass is markedly higher (80% vs 50%). This treatment with Na2CO3 solutions leads to multiple positive effects as: increments in the mesoporosity and external surface area; and changes in the nature and accessibility to the acid active sites. The catalytic activity and selectivity were greatly improved. Further, the deactivation by coke deposition was attenuated.
Fil: Lago, Camila Desire. 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: Decolatti, Hernán Pablo. 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: Tonutti, Lucas Gabriel. 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: Dalla Costa, Bruno Oscar. 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: Querini, Carlos Alberto. 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 Modified H-ZSM-5 zeolite catalysts were studied for the dehydration of glycerol to acrolein in gas phase. The modifications were made by alkaline treatment using Na2CO3 solutions in different concentrations, followed by consecutive ion exchanges with NH4NO3 solution in order to recover the acidic form of the materials. The mild conditions selected (alkali concentrations, time and temperature) allowed to preserve the crystallinity and framework characteristic in the zeolite, selectively removing silicon while maintaining practically all the aluminum content. This process has important advantages over the alkaline treatment with NaOH (at an equivalent pH), such as high selectivity to remove silicon instead of aluminum, and in addition the yield of synthesized material respect to the initial mass is markedly higher (80% vs 50%). This treatment with Na2CO3 solutions leads to multiple positive effects as: increments in the mesoporosity and external surface area; and changes in the nature and accessibility to the acid active sites. The catalytic activity and selectivity were greatly improved. Further, the deactivation by coke deposition was attenuated.
publishDate 2018
dc.date.none.fl_str_mv 2018-10
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/11336/88472
Lago, Camila Desire; Decolatti, Hernán Pablo; Tonutti, Lucas Gabriel; Dalla Costa, Bruno Oscar; Querini, Carlos Alberto; Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3; Academic Press Inc Elsevier Science; Journal of Catalysis; 366; 10-2018; 16-27
0021-9517
CONICET Digital
CONICET
url http://hdl.handle.net/11336/88472
identifier_str_mv Lago, Camila Desire; Decolatti, Hernán Pablo; Tonutti, Lucas Gabriel; Dalla Costa, Bruno Oscar; Querini, Carlos Alberto; Gas phase glycerol dehydration over H-ZSM-5 zeolite modified by alkaline treatment with Na2CO3; Academic Press Inc Elsevier Science; Journal of Catalysis; 366; 10-2018; 16-27
0021-9517
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://linkinghub.elsevier.com/retrieve/pii/S0021951718302999
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcat.2018.07.036
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
dc.publisher.none.fl_str_mv Academic Press Inc Elsevier Science
publisher.none.fl_str_mv Academic Press Inc 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_ 1846082703364980736
score 13.22299

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