Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio

Detalhes bibliográficos
Autor(a) principal: Florentino, A. O. [UNESP]
Data de Publicação: 1997
Outros Autores: Saeki, M. J. [UNESP], Cartraud, P., Magnoux, P., Guisnet, M.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0100-40421997000100003
http://hdl.handle.net/11449/27554
Resumo: HZSM5 zeolite was modified by exchanging proton by niobium (V). Several samples were obtained with various degrees of exchange. Pore volumes and acidity were measured to characterize these exchanged zeolites. Catalytic properties were evaluated with two reaction tests: m-xylene transformation and n-heptane cracking. The introduction of niobium on HZSM5 zeolite decreases the diffusion coefficient of 2-methyl-pentane and increases the zeolite acidity. The sample containing niobium are initially more active in cracking of n-heptane and m-xylene isomerization than HZSM5 alone.
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spelling Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbioCharacterization and catalytical properties of hzsm5 zeolite modified by niobiumHZSM5 zeoliteniobium exchangepore volumeacidityHZSM5 zeolite was modified by exchanging proton by niobium (V). Several samples were obtained with various degrees of exchange. Pore volumes and acidity were measured to characterize these exchanged zeolites. Catalytic properties were evaluated with two reaction tests: m-xylene transformation and n-heptane cracking. The introduction of niobium on HZSM5 zeolite decreases the diffusion coefficient of 2-methyl-pentane and increases the zeolite acidity. The sample containing niobium are initially more active in cracking of n-heptane and m-xylene isomerization than HZSM5 alone.Universidade Estadual Paulista Departamento de QuímicaURA CNRS 350 Catalyse en Chimie OrganiqueUniversidade Estadual Paulista Departamento de QuímicaSociedade Brasileira de QuímicaUniversidade Estadual Paulista (Unesp)URA CNRS 350 Catalyse en Chimie OrganiqueFlorentino, A. O. [UNESP]Saeki, M. J. [UNESP]Cartraud, P.Magnoux, P.Guisnet, M.2014-05-20T15:10:15Z2014-05-20T15:10:15Z1997-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article9-13application/pdfhttp://dx.doi.org/10.1590/S0100-40421997000100003Química Nova. Sociedade Brasileira de Química, v. 20, n. 1, p. 9-13, 1997.0100-4042http://hdl.handle.net/11449/2755410.1590/S0100-40421997000100003S0100-40421997000100003S0100-40421997000100003.pdf1802982806436894SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporQuímica Nova0.6460,255info:eu-repo/semantics/openAccess2024-01-12T06:25:50Zoai:repositorio.unesp.br:11449/27554Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:45:34.389370Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio
Characterization and catalytical properties of hzsm5 zeolite modified by niobium
title Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio
spellingShingle Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio
Florentino, A. O. [UNESP]
HZSM5 zeolite
niobium exchange
pore volume
acidity
title_short Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio
title_full Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio
title_fullStr Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio
title_full_unstemmed Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio
title_sort Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio
author Florentino, A. O. [UNESP]
author_facet Florentino, A. O. [UNESP]
Saeki, M. J. [UNESP]
Cartraud, P.
Magnoux, P.
Guisnet, M.
author_role author
author2 Saeki, M. J. [UNESP]
Cartraud, P.
Magnoux, P.
Guisnet, M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
URA CNRS 350 Catalyse en Chimie Organique
dc.contributor.author.fl_str_mv Florentino, A. O. [UNESP]
Saeki, M. J. [UNESP]
Cartraud, P.
Magnoux, P.
Guisnet, M.
dc.subject.por.fl_str_mv HZSM5 zeolite
niobium exchange
pore volume
acidity
topic HZSM5 zeolite
niobium exchange
pore volume
acidity
description HZSM5 zeolite was modified by exchanging proton by niobium (V). Several samples were obtained with various degrees of exchange. Pore volumes and acidity were measured to characterize these exchanged zeolites. Catalytic properties were evaluated with two reaction tests: m-xylene transformation and n-heptane cracking. The introduction of niobium on HZSM5 zeolite decreases the diffusion coefficient of 2-methyl-pentane and increases the zeolite acidity. The sample containing niobium are initially more active in cracking of n-heptane and m-xylene isomerization than HZSM5 alone.
publishDate 1997
dc.date.none.fl_str_mv 1997-02-01
2014-05-20T15:10:15Z
2014-05-20T15:10:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0100-40421997000100003
Química Nova. Sociedade Brasileira de Química, v. 20, n. 1, p. 9-13, 1997.
0100-4042
http://hdl.handle.net/11449/27554
10.1590/S0100-40421997000100003
S0100-40421997000100003
S0100-40421997000100003.pdf
1802982806436894
url http://dx.doi.org/10.1590/S0100-40421997000100003
http://hdl.handle.net/11449/27554
identifier_str_mv Química Nova. Sociedade Brasileira de Química, v. 20, n. 1, p. 9-13, 1997.
0100-4042
10.1590/S0100-40421997000100003
S0100-40421997000100003
S0100-40421997000100003.pdf
1802982806436894
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Química Nova
0.646
0,255
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 9-13
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129460065533952

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