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dc.contributor.author
Tonutti, Lucas Gabriel
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dc.contributor.author
Decolatti, Hernán Pablo
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dc.contributor.author
Querini, Carlos Alberto
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dc.contributor.author
Dalla Costa, Bruno Oscar
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dc.date.available
2021-11-02T13:16:33Z
dc.date.issued
2020-10
dc.identifier.citation
Tonutti, Lucas Gabriel; Decolatti, Hernán Pablo; Querini, Carlos Alberto; Dalla Costa, Bruno Oscar; Hierarchical H-ZSM-5 zeolite and sulfonic SBA-15: The properties of acidic H and behavior in acetylation and alkylation reactions; Elsevier Science; Microporous and Mesoporous Materials; 305; 10-2020; 1-12
dc.identifier.issn
1387-1811
dc.identifier.uri
http://hdl.handle.net/11336/145709
dc.description.abstract
A commercial H-ZSM-5 zeolite was modified by alkaline treatment using NaOH solutions in different concentrations, followed by consecutive ion exchanges with NH4NO3 solution in order to recover the acidic form of the material. According to the intensity of the treatment, mesoporosity with pore size ranged between 9 and 13 nm was generated in the zeolite. Also, the strength and number of acid sites were practically maintained, observing only a noticeable decrease for the more intense treatment. After testing in the glycerol acetylation reaction, some improvements in the activity were observed compared to the original zeolite, but no appreciable increment in the selectivity to diacetin (DA) and triacetin (TA) was reached. However, when a mesoporous SBA-15 functionalized with propylsulfonic acid groups was used as catalyst, the selectivities to DA and TA were noticeably enhanced. Moreover, the zeolites were tested in the isobutane/butene alkylation reaction in gas phase, and also in this case the modified materials did not favor the production of trimethylpentanes (TMPs) compared to the original zeolite. Characterization results allowed to conclude that the mesopores formed in the zeolite after the modification facilitated the accessibility of reactants and products to some acid sites, but these have not enough concentration, being most of them located in the micropores of the zeolite. H-D exchange in sulfonic SBA-15 prior to butene pulses demonstrated that its acidic H has not capacity for butenes adsorption. This explains the lack of activity of this catalyst in the isobutane/butene alkylation reaction.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ACID SITES LOCATION
dc.subject
ALKALINE TREATMENT
dc.subject
GLYCEROL ACETYLATION
dc.subject
H-ZSM-5 ZEOLITE
dc.subject
ISOBUTANE ALKYLATION
dc.subject.classification
Otras Ingeniería Química
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Hierarchical H-ZSM-5 zeolite and sulfonic SBA-15: The properties of acidic H and behavior in acetylation and alkylation reactions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-07T14:35:45Z
dc.journal.volume
305
dc.journal.pagination
1-12
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
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
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 "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; 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 "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; 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 "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
dc.journal.title
Microporous and Mesoporous Materials
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S1387181120302870
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.micromeso.2020.110284
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