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A systematic study on mixtures of Pt/zeolite as hydroisomerization catalysts

2017-03Journal article Restricted access
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dc.contributor.authorMendes, Pedro
dc.contributor.authorMarques Mota, Filipe
dc.contributor.authorSilva, João
dc.contributor.authorRibeiro, M Filipa
dc.contributor.authorDaudin, Antoine
dc.contributor.authorBouchy, Christophe
dc.date.accessioned2017-05-10T10:56:32Z
dc.date.available2017-05-10T10:56:32Z
dc.date.issued2017-03
dc.description.abstractMixtures of bifunctional catalysts were studied in the hydroisomerization of n-hexadecane. The study focused on the impact of the properties of individual catalysts on the hybrid catalysts' performance. On the one hand, a Pt/HUSY catalyst was mixed with a series of Pt/zeolites with different topologies and acidities, all of the catalysts being individually well-balanced. Despite the diversity of Pt/zeolite catalysts in terms of both activity and isomerization selectivity, the performances of the hybrid catalysts corresponded to the average of individual components. Cooperative effects are proposed to be caused by a great difference in the relative activity of the Pt/zeolite catalysts rather than in selectivity. On the other hand, mixtures of large-pore Pt/HUSY and Pt/HBEA catalysts with different Pt loadings were tested. The performance of the resulting hybrid catalysts was observed to be a function of global metal-acid balance. Mixtures of poorly-balanced and well-balanced catalysts can be at the origin of cooperative effects, as demonstrated experimentally by an improved C-16 isomer yield. The use of a dual-function kinetic model to simulate the performance of the hybrid catalysts corroborated these interpretations. This comprehensive work is expected to serve as a guideline for uncovering hybrid catalytic systems with industrial applications such as in the hydroisomerization of long chain n-paraffins.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMENDES, Pedro S. F.; [et al] – A systematic study on mixtures of Pt/zeolite as hydroisomerization catalysts. Catalysis Science & Technology. ISSN 2044-4753. Vol. 7, N.º 5 (2017), pp. 1095-1107pt_PT
dc.identifier.doi10.1039/c6cy02642gpt_PT
dc.identifier.issn2044-4753
dc.identifier.issn2044-4761
dc.identifier.urihttp://hdl.handle.net/10400.21/6997
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRoyal Society of Chemistrypt_PT
dc.subjectChain n-alkanespt_PT
dc.subjectShape-selectivitypt_PT
dc.subjectProduct selectivitypt_PT
dc.subjectZeolite nanosheetspt_PT
dc.subjectReaction-mechanismpt_PT
dc.subjectIntimate mixturespt_PT
dc.subjectFuel productionpt_PT
dc.subjectY-zeolitespt_PT
dc.subjectHydrocrackingpt_PT
dc.subjectIsomerizationpt_PT
dc.titleA systematic study on mixtures of Pt/zeolite as hydroisomerization catalystspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1107pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage1095pt_PT
oaire.citation.titleCatalysis Science and Technologypt_PT
oaire.citation.volume7pt_PT
person.familyNameFreitas Mendes
person.familyNameMarques Mota
person.familyNameSilva
person.familyNameRibeiro
person.familyNameDaudin
person.familyNameBouchy
person.givenNamePedro Simão
person.givenNameFilipe
person.givenNameJoão Miguel Alves da
person.givenNameM Filipa
person.givenNameAntoine
person.givenNameChristophe
person.identifierfWmw7kEAAAAJ
person.identifier.ciencia-id2818-5E65-1249
person.identifier.ciencia-id3D1F-BD3A-4A9D
person.identifier.ciencia-idC810-17B5-EC05
person.identifier.orcid0000-0002-2768-353X
person.identifier.orcid0000-0002-0928-3583
person.identifier.orcid0000-0003-1244-6483
person.identifier.orcid0000-0001-9538-821X
person.identifier.orcid0000-0003-3789-5277
person.identifier.orcid0000-0002-1414-0333
person.identifier.ridS-4781-2016
person.identifier.ridA-9986-2017
person.identifier.ridF-8581-2013
person.identifier.ridF-8581-2018
person.identifier.scopus-author-id56585480300
person.identifier.scopus-author-id55647044700
person.identifier.scopus-author-id16317291000
person.identifier.scopus-author-id57191514529
person.identifier.scopus-author-id6602758572
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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