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Bridging the gap between academic and industrial hydrocracking: on catalyst and operating conditions' effects

2020-08-07Journal article Restricted access
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dc.contributor.authorMendes, Pedro S. F.
dc.contributor.authorSilva, João M
dc.contributor.authorRibeiro, M Filipa
dc.contributor.authorDaudin, Antoine
dc.contributor.authorBouchy, Christophe
dc.date.accessioned2021-06-21T14:32:23Z
dc.date.available2021-06-21T14:32:23Z
dc.date.issued2020-08-07
dc.description.abstractThis work aims at bridging the knowledge gap between the well-studied Pt/zeolite catalysts and the industrially-employed NiMoS/(Al2O3+ zeolite) ones. To do so, catalyst series based on HUSY zeolite were evaluated in the hydroconversion of n-hexadecane under similar operating conditions, but the industrially-relevant H2S and NH(3)contaminants were added when evaluating the latter. The intrinsic performance of Pt/HUSY and NiMoS/(Al2O3+ HUSY) catalysts was noticeably similar, when well-balanced, with the catalytic activity being however much lower in the latter (temperature gap of 125 K). Ammonia inhibition of more than 99% of the protonic sites was revealed to be the origin of such low activity. On the other hand, the metal-acid balance was only reached at sufficiently low reaction temperatures (ca.593 K),i.e.when the NH(3)inhibiting effect increased the metal to acid site ratio in NiMoS/(Al2O3+ HUSY) to values five orders of magnitude larger than those in the Pt/HUSY one. In addition to the understanding achieved on the role of metal-acid balance in industrial-like catalysts and its key controlling parameters, these findings also point to the need to develop better hydrogenating functions to improve the efficiency, and consequently the sustainability of liquid fuel production.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMENDES, Pedro S. F.; [et al] – Bridging the gap between academic and industrial hydrocracking: on catalyst and operating conditions' effects. Catalysis Science and Technology. ISSN 2044-4753. Vol. 10, N.º 15 (2020), pp. 1-13pt_PT
dc.identifier.doi10.1039/d0cy00568apt_PT
dc.identifier.eissn2044-4761
dc.identifier.issn2044-4753
dc.identifier.urihttp://hdl.handle.net/10400.21/13460
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRoyal Society of Chemistrypt_PT
dc.relationSYNERGIES BETWEEN ZEOLITES ON A MODEL HYDROCRACKING REACTION, FROM IDEALITY TO REALITY
dc.subjectPt/zeolite catalystspt_PT
dc.subjectNiMoS/(Al2O3+ zeolite)pt_PT
dc.subjectHUSY zeolitept_PT
dc.subjectn-hexadecanept_PT
dc.titleBridging the gap between academic and industrial hydrocracking: on catalyst and operating conditions' effectspt_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.endPage13pt_PT
oaire.citation.issue15pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleCatalysis Science and Technologypt_PT
oaire.citation.volume10pt_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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