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dc.contributor.author
Decolatti, Hernán Pablo
dc.contributor.author
Dalla Costa, Bruno Oscar
dc.contributor.author
Querini, Carlos Alberto
dc.date.available
2017-12-26T21:01:14Z
dc.date.issued
2014-11
dc.identifier.citation
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
dc.identifier.issn
1387-1811
dc.identifier.uri
http://hdl.handle.net/11336/31609
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Glycerol Dehydration
dc.subject
Acrolein
dc.subject
Zsm-5
dc.subject
Alkaline Treatment
dc.subject.classification
Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Dehydration of glycerol to acrolein using H-ZSM5 zeolite modified by alkali treatment with NaOH
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-26T19:50:37Z
dc.journal.volume
204
dc.journal.pagination
180-189
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
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
dc.description.fil
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
dc.description.fil
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
dc.journal.title
Microporous and Mesoporous Materials
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S138718111400657X
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.micromeso.2014.11.014


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