Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH

Autores
Decolatti, Hernán Pablo; Dalla Costa, Bruno Oscar; Querini, Carlos Alberto
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The dehydration of glycerol to acrolein has been studied using H-ZSM5 zeolite treated in alkaline medium in order to develop mesoporosity by desilication. Treatment of H-ZSM5 zeolite (Si/Al=15) in NaOH solutions leads to mesoporosity development due to the preferential extraction of Si from the zeolite framework (desilication) without significant modification of the intrinsic zeolite properties. The samples were studied by powder X-ray diffraction (XRD), N2 adsorption, pyridine-temperature programmed desorption (Py-TPD) and FTIR of adsorbed pyridine. The coke deposits were analyzed by temperature programmed oxidation (TPO). The alkaline treatment conditions led to an increased mesopore surface area from 254 m2 g-1 for the calcined zeolite to 325 m2 g-1 for the alkaline-treated material, while the micropore volume was only slightly decreased (from 0.136 to 0.130 ml g-1).Besides substantial mesoporosity development, the zeolite maintained Brönsted acidic properties, which are highly attractive in order to promote acid-catalyzed reactions like glycerol dehydration. Catalytic testing of the modified solids showed an improved performance in dehydration of glycerol to acrolein, due to the unique interplay between improved physical transport in the shortened micropores and the preserved high density of acid sites. The catalyst stability was improved upon desilication due to an increase in coke tolerance.
Fil: Decolatti, Hernán Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; 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 ; 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 ; Argentina
Materia
Glycerol Dehydration
Acrolein
Zsm-5
Alkaline Treatment
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/31609
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOHDecolatti, Hernán PabloDalla Costa, Bruno OscarQuerini, Carlos AlbertoGlycerol DehydrationAcroleinZsm-5Alkaline Treatmenthttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The dehydration of glycerol to acrolein has been studied using H-ZSM5 zeolite treated in alkaline medium in order to develop mesoporosity by desilication. Treatment of H-ZSM5 zeolite (Si/Al=15) in NaOH solutions leads to mesoporosity development due to the preferential extraction of Si from the zeolite framework (desilication) without significant modification of the intrinsic zeolite properties. The samples were studied by powder X-ray diffraction (XRD), N2 adsorption, pyridine-temperature programmed desorption (Py-TPD) and FTIR of adsorbed pyridine. The coke deposits were analyzed by temperature programmed oxidation (TPO). The alkaline treatment conditions led to an increased mesopore surface area from 254 m2 g-1 for the calcined zeolite to 325 m2 g-1 for the alkaline-treated material, while the micropore volume was only slightly decreased (from 0.136 to 0.130 ml g-1).Besides substantial mesoporosity development, the zeolite maintained Brönsted acidic properties, which are highly attractive in order to promote acid-catalyzed reactions like glycerol dehydration. Catalytic testing of the modified solids showed an improved performance in dehydration of glycerol to acrolein, due to the unique interplay between improved physical transport in the shortened micropores and the preserved high density of acid sites. The catalyst stability was improved upon desilication due to an increase in coke tolerance.Fil: Decolatti, Hernán Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; 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 ; ArgentinaFil: Querini, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaElsevier2014-11info: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/11336/31609Querini, Carlos Alberto; Dalla Costa, Bruno Oscar; Decolatti, Hernán Pablo; Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH; Elsevier; Microporous and Mesoporous Materials; 204; 11-2014; 180-1891387-1811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S138718111400657Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.micromeso.2014.11.014info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:50:31Zoai:ri.conicet.gov.ar:11336/31609instacron: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 09:50:32.261CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH
title Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH
spellingShingle Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH
Decolatti, Hernán Pablo
Glycerol Dehydration
Acrolein
Zsm-5
Alkaline Treatment
title_short Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH
title_full Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH
title_fullStr Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH
title_full_unstemmed Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH
title_sort Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH
dc.creator.none.fl_str_mv Decolatti, Hernán Pablo
Dalla Costa, Bruno Oscar
Querini, Carlos Alberto
author Decolatti, Hernán Pablo
author_facet Decolatti, Hernán Pablo
Dalla Costa, Bruno Oscar
Querini, Carlos Alberto
author_role author
author2 Dalla Costa, Bruno Oscar
Querini, Carlos Alberto
author2_role author
author
dc.subject.none.fl_str_mv Glycerol Dehydration
Acrolein
Zsm-5
Alkaline Treatment
topic Glycerol Dehydration
Acrolein
Zsm-5
Alkaline Treatment
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 dehydration of glycerol to acrolein has been studied using H-ZSM5 zeolite treated in alkaline medium in order to develop mesoporosity by desilication. Treatment of H-ZSM5 zeolite (Si/Al=15) in NaOH solutions leads to mesoporosity development due to the preferential extraction of Si from the zeolite framework (desilication) without significant modification of the intrinsic zeolite properties. The samples were studied by powder X-ray diffraction (XRD), N2 adsorption, pyridine-temperature programmed desorption (Py-TPD) and FTIR of adsorbed pyridine. The coke deposits were analyzed by temperature programmed oxidation (TPO). The alkaline treatment conditions led to an increased mesopore surface area from 254 m2 g-1 for the calcined zeolite to 325 m2 g-1 for the alkaline-treated material, while the micropore volume was only slightly decreased (from 0.136 to 0.130 ml g-1).Besides substantial mesoporosity development, the zeolite maintained Brönsted acidic properties, which are highly attractive in order to promote acid-catalyzed reactions like glycerol dehydration. Catalytic testing of the modified solids showed an improved performance in dehydration of glycerol to acrolein, due to the unique interplay between improved physical transport in the shortened micropores and the preserved high density of acid sites. The catalyst stability was improved upon desilication due to an increase in coke tolerance.
Fil: Decolatti, Hernán Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; 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 ; 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 ; Argentina
description The dehydration of glycerol to acrolein has been studied using H-ZSM5 zeolite treated in alkaline medium in order to develop mesoporosity by desilication. Treatment of H-ZSM5 zeolite (Si/Al=15) in NaOH solutions leads to mesoporosity development due to the preferential extraction of Si from the zeolite framework (desilication) without significant modification of the intrinsic zeolite properties. The samples were studied by powder X-ray diffraction (XRD), N2 adsorption, pyridine-temperature programmed desorption (Py-TPD) and FTIR of adsorbed pyridine. The coke deposits were analyzed by temperature programmed oxidation (TPO). The alkaline treatment conditions led to an increased mesopore surface area from 254 m2 g-1 for the calcined zeolite to 325 m2 g-1 for the alkaline-treated material, while the micropore volume was only slightly decreased (from 0.136 to 0.130 ml g-1).Besides substantial mesoporosity development, the zeolite maintained Brönsted acidic properties, which are highly attractive in order to promote acid-catalyzed reactions like glycerol dehydration. Catalytic testing of the modified solids showed an improved performance in dehydration of glycerol to acrolein, due to the unique interplay between improved physical transport in the shortened micropores and the preserved high density of acid sites. The catalyst stability was improved upon desilication due to an increase in coke tolerance.
publishDate 2014
dc.date.none.fl_str_mv 2014-11
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/11336/31609
Querini, Carlos Alberto; Dalla Costa, Bruno Oscar; Decolatti, Hernán Pablo; Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH; Elsevier; Microporous and Mesoporous Materials; 204; 11-2014; 180-189
1387-1811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31609
identifier_str_mv Querini, Carlos Alberto; Dalla Costa, Bruno Oscar; Decolatti, Hernán Pablo; Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH; Elsevier; Microporous and Mesoporous Materials; 204; 11-2014; 180-189
1387-1811
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S138718111400657X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.micromeso.2014.11.014
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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