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dc.contributor.author
Lima, Patrícia M.
dc.contributor.author
Garetto, Teresita Francisca
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Cavalcante Jr., Célio L.
dc.contributor.author
Cardoso, Dilson
dc.date.available
2019-06-20T23:50:05Z
dc.date.issued
2011-08
dc.identifier.citation
Lima, Patrícia M.; Garetto, Teresita Francisca; Cavalcante Jr., Célio L.; Cardoso, Dilson; Isomerization of n-hexane on Pt-Ni catalysts supported on nanocrystalline H-BEA zeolite; Elsevier Science; Catalysis Today; 172; 1; 8-2011; 195-202
dc.identifier.issn
0920-5861
dc.identifier.uri
http://hdl.handle.net/11336/78584
dc.description.abstract
The zeolite Beta used in this work consists of nanosized crystallites (20-30 nm) aggregates, determined by HRTEM analysis. The influence of the zeolite structure and crystallite size on the desorption rates of linear paraffins was determined by ZLC chromatography. Desorption from Beta zeolite was faster than from USY zeolite. IR acidity analysis by adsorption and desorption of pyridine showed that Beta zeolite has a smaller number of Brønsted acid sites than USY zeolite, but that they are a little stronger. Pt-Ni/H-BEA catalysts showed higher activity than Pt-Ni/H-USY ones. This behavior can be attributed to the very small crystallites of Beta zeolite, which enable faster diffusion of the reactant and products molecules. Among bimetallic catalysts, the highest activity was observed with that containing 60% Pt. This result is very interesting in view of the cost reduction, relative to 100% Pt catalyst.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Alkane Isomerization
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Beta Zeolite
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Bimetallic Catalyst
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Nanosized Crystals
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Otras Ingeniería Química
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Ingeniería Química
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Isomerization of n-hexane on Pt-Ni catalysts supported on nanocrystalline H-BEA zeolite
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-06-19T12:18:35Z
dc.journal.volume
172
dc.journal.number
1
dc.journal.pagination
195-202
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Lima, Patrícia M.. Universidade do Brasília; Brasil
dc.description.fil
Fil: Garetto, Teresita Francisca. 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: Cavalcante Jr., Célio L.. Universidade Estadual do Ceará; Brasil
dc.description.fil
Fil: Cardoso, Dilson. Universidade Federal do São Carlos; Brasil
dc.journal.title
Catalysis Today
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cattod.2011.02.031
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