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dc.creatorMariana A. Moreira
dc.creatorJoão C. Santos
dc.creatorAlexandre F. P. Ferreira
dc.creatorJosé M. Loureiro
dc.creatorFlorence Ragon
dc.creatorPatricia Horcajada
dc.creatorKyu-E. Shim
dc.creatorYoung-K. Hwang
dc.creatorU.-Hwang Lee
dc.creatorJong-S. Chang
dc.creatorChristian Serre
dc.creatorAlírio E. Rodrigues
dc.description.abstractPowder, agglomerates, and tablets of the microporouszirconium(IV) terephthalate metalorganic frameworkUiO-66 were evaluated for the selective adsorption andseparation of xylene isomers in the liquid phase using n-heptaneas the eluent. Pulse experiments, performed at 313 K in thepresence of n-heptane, revealed the o-xylene preference of thismaterial, which was further confirmed by binary and multicomponentbreakthrough experiments in the presence of m- andp-xylene, resulting in selectivities at 313 K of 1.8 and 2.4 withregards to m-xylene and p-xylene, respectively. Additionally,because p-xylene is the less retained isomer, UiO-66 presents aselectivity pattern that is reverse of that of the xylenes' moleculardimension with respect to shape selectivity. The shaping of the material as tablets did not significantly change its selectivity toward theo-xylene isomer or toward p-xylene, which was the less retained isomer, despite a loss in capacity. Finally, the selectivity behavior ofUiO-66 in the liquid n-heptane phase makes it a suitable material for o-xylene separation in the extract (heavy product) or p-xyleneseparation in the raffinate (light product) by simulated moving bed technology.
dc.relationinfo:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Programa de Financiamento Plurianual de Unidades de I&D/PEst-C/EQB/LA0020/2011/Projeto Estratégico-LA 20 - 2011-2012/LA 20
dc.subjectEngenharia química
dc.subjectChemical engineering
dc.titleReverse shape selectivity in the liquid-phase adsorption of xylene isomers in zirconium terephthalate MOF UiO-66
dc.typeArtigo em Revista Científica Internacional
dc.contributor.uportoFaculdade de Engenharia
dc.subject.fosCiências da engenharia e tecnologias::Engenharia química
dc.subject.fosEngineering and technology::Chemical engineering
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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