Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorURA CNRS 350 Catalyse en Chimie Organique
dc.date.accessioned2014-05-20T15:10:15Z
dc.date.accessioned2022-10-05T15:32:37Z
dc.date.available2014-05-20T15:10:15Z
dc.date.available2022-10-05T15:32:37Z
dc.date.created2014-05-20T15:10:15Z
dc.date.issued1997-02-01
dc.identifierQuímica Nova. Sociedade Brasileira de Química, v. 20, n. 1, p. 9-13, 1997.
dc.identifier0100-4042
dc.identifierhttp://hdl.handle.net/11449/27554
dc.identifier10.1590/S0100-40421997000100003
dc.identifierS0100-40421997000100003
dc.identifierS0100-40421997000100003.pdf
dc.identifier1802982806436894
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3900464
dc.description.abstractHZSM5 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.
dc.languagepor
dc.publisherSociedade Brasileira de Química
dc.relationQuímica Nova
dc.relation0.646
dc.relation0,255
dc.rightsAcesso aberto
dc.sourceSciELO
dc.subjectHZSM5 zeolite
dc.subjectniobium exchange
dc.subjectpore volume
dc.subjectacidity
dc.titleCaracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio
dc.typeArtigo


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