Characterization and catalytical properties of HZSM5 zeolite modified by niobium.

Detalhes bibliográficos
Autor(a) principal: Florentino, A. O.
Data de Publicação: 1997
Outros Autores: Saeki, M. J., Cartraud, P., Magnoux, P., Guisnet, M.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/195667
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 Characterization and catalytical properties of HZSM5 zeolite modified by niobium.HZSM5 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.URA CNRS 350 CATALYSE CHIM ORGAN,F-86022 POITIERS,FRANCESoc Brasileira QuimicaURA CNRS 350 CATALYSE CHIM ORGANUniversidade Estadual Paulista (Unesp)Florentino, A. O.Saeki, M. J.Cartraud, P.Magnoux, P.Guisnet, M.2020-12-10T17:59:39Z2020-12-10T17:59:39Z1997-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article9-13Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 20, n. 1, p. 9-13, 1997.0100-4042http://hdl.handle.net/11449/195667WOS:A1997WF54000003Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporQuimica Novainfo:eu-repo/semantics/openAccess2021-10-23T10:18:35Zoai:repositorio.unesp.br:11449/195667Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T10:18:35Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Characterization and catalytical properties of HZSM5 zeolite modified by niobium.
title Characterization and catalytical properties of HZSM5 zeolite modified by niobium.
spellingShingle Characterization and catalytical properties of HZSM5 zeolite modified by niobium.
Florentino, A. O.
HZSM5 zeolite
niobium exchange
pore volume
acidity
title_short Characterization and catalytical properties of HZSM5 zeolite modified by niobium.
title_full Characterization and catalytical properties of HZSM5 zeolite modified by niobium.
title_fullStr Characterization and catalytical properties of HZSM5 zeolite modified by niobium.
title_full_unstemmed Characterization and catalytical properties of HZSM5 zeolite modified by niobium.
title_sort Characterization and catalytical properties of HZSM5 zeolite modified by niobium.
author Florentino, A. O.
author_facet Florentino, A. O.
Saeki, M. J.
Cartraud, P.
Magnoux, P.
Guisnet, M.
author_role author
author2 Saeki, M. J.
Cartraud, P.
Magnoux, P.
Guisnet, M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv URA CNRS 350 CATALYSE CHIM ORGAN
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Florentino, A. O.
Saeki, M. J.
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 1997-01-01
2020-12-10T17:59:39Z
2020-12-10T17:59:39Z
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 Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 20, n. 1, p. 9-13, 1997.
0100-4042
http://hdl.handle.net/11449/195667
WOS:A1997WF54000003
identifier_str_mv Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 20, n. 1, p. 9-13, 1997.
0100-4042
WOS:A1997WF54000003
url http://hdl.handle.net/11449/195667
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Quimica Nova
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 9-13
dc.publisher.none.fl_str_mv Soc Brasileira Quimica
publisher.none.fl_str_mv Soc Brasileira Quimica
dc.source.none.fl_str_mv Web of Science
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
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