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Quantification of the available acid sites in the hydrocracking of nitrogen-containing feedstocks over USY shaped NiMo-catalysts

2019-03-25Journal article Restricted access
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dc.contributor.authorMendes, Pedro
dc.contributor.authorSilva, João
dc.contributor.authorRibeiro, M Filipa
dc.contributor.authorBouchy, Christophe
dc.contributor.authorDaudin, Antoine
dc.date.accessioned2019-05-03T12:55:51Z
dc.date.available2019-05-03T12:55:51Z
dc.date.issued2019-03-25
dc.description.abstractThe inhibition of Brensted acid sites by nitrogen -containing molecules was quantified under industrially relevant hydrocracking conditions. This was achieved by testing bifunctional catalysts based on HUSY zeolite in cyclohexane hydroconversion. For ammonia partial pressures within 0.2-2.8 kPa, the percentage of inhibited Brensted sites was superior to 98% at 623 K. Significant reduction in the ammonia content caused rather moderate variations on the number of available sites. Conversely, a temperature raise from 600 to 640K triplicated the vacant Brensted sites due to the significant endothermicity of ammonia desorption. The inhibiting effect of ammonia can be therefore easily modulated by temperature. (C) 2018 The Korean Society of Industrial and Engineering Chemistry.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMENDES, Pedro S. F.; [et al] – Quantification of the available acid sites in the hydrocracking of nitrogen-containing feedstocks over USY shaped NiMo-catalysts. Journal of Industrial and Engineering Chemistry. ISSN 1226-086X. Vol. 71 (2019), pp. 167-176pt_PT
dc.identifier.doi10.1016/j.jiec.2018.11.019pt_PT
dc.identifier.issn1226-086X
dc.identifier.issn1876-794X
dc.identifier.urihttp://hdl.handle.net/10400.21/9931
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationSYNERGIES BETWEEN ZEOLITES ON A MODEL HYDROCRACKING REACTION, FROM IDEALITY TO REALITY
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/pii/S1226086X18313819?token=CC7773EEEC3F94F0AF7D70711243DDDD5CDEE9CABFB96273C927FA8403742C8F8D81451B5FA893413DE978C01A806DB2pt_PT
dc.subjectHydrocrackingpt_PT
dc.subjectHUSY zeolitept_PT
dc.subjectCatalyst deactivationpt_PT
dc.subjectAmmoniapt_PT
dc.subjectOperando Brensted aciditypt_PT
dc.subjectBifunctional catalystpt_PT
dc.titleQuantification of the available acid sites in the hydrocracking of nitrogen-containing feedstocks over USY shaped NiMo-catalystspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleSYNERGIES BETWEEN ZEOLITES ON A MODEL HYDROCRACKING REACTION, FROM IDEALITY TO REALITY
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F00100%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F87927%2F2012/PT
oaire.citation.endPage176pt_PT
oaire.citation.startPage167pt_PT
oaire.citation.titleJournal of Industrial and Engineering Chemistrypt_PT
oaire.citation.volume71pt_PT
oaire.fundingStream5876
person.familyNameFreitas Mendes
person.familyNameSilva
person.familyNameRibeiro
person.familyNameDaudin
person.givenNamePedro Simão
person.givenNameJoão Miguel Alves da
person.givenNameM Filipa
person.givenNameAntoine
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.orcid0000-0003-1244-6483
person.identifier.orcid0000-0001-9538-821X
person.identifier.orcid0000-0003-3789-5277
person.identifier.ridS-4781-2016
person.identifier.ridF-8581-2013
person.identifier.ridF-8581-2018
person.identifier.scopus-author-id56585480300
person.identifier.scopus-author-id16317291000
person.identifier.scopus-author-id57191514529
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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