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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/88472
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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 Técnicas2025-09-29T09:37:11Zoai: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:34982025-09-29 09:37:11.962CONICET 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 |
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1844613170877956096 |
score |
13.070432 |