Repository logo
 
Publication

Bio-oils/FCC co-processing: insights into the adsorption of guaiacol on Y zeolites with distinct acidity and textural properties

2021-08Journal article Restricted access
Simple item page
dc.contributor.authorSilva, João
dc.contributor.authorRibeiro, M. F.
dc.contributor.authorGraça, I.
dc.contributor.authorFernandes, A.
dc.date.accessioned2021-10-07T06:49:30Z
dc.date.available2021-10-07T06:49:30Z
dc.date.issued2021-08
dc.description.abstractThe guaiacol adsorption capacity of several Y zeolites with different physicochemical properties was tested by performing breakthrough adsorption experiments, in order to investigate the guaiacol adsorption on Fluid Catalytic Cracking catalysts during bio-oils/FCC feedstocks co-processing. X-Ray diffraction, nitrogen sorption measurements and pyridine adsorption followed by Infrared Spectroscopy were used to determine the framework Si/Al ratio, the textural parameters, and finally the nature and amount of acid sites. Klinkenberg model was used to fit the experimental data and to obtain the guaiacol adsorption capacity and ka (overall coefficient of mass transfer) and Ke (adsorption equilibrium constant) parameters, which are directly related to, respectively, kinetic and thermodynamic aspects. Ke values, and so guaiacol adsorption, were observed to increase with the total number of Bronsted and Lewis acid sites on the zeolites, as well as with the amount of Na exchange. Conversely, mesoporosity increases the diffusion rate of guaiacol inside the zeolite structure, leading to higher ka values and decreasing guaiacol retention. Overall, data show that guaiacol adsorption on the FCC catalysts, and so its impact on the activity, might decrease with the catalyst age, owing to the changes on the FCC catalyst properties taking place during operation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSILVA, João Miguel; [et al] – Bio-oils/FCC co-processing: insights into the adsorption of guaiacol on Y zeolites with distinct acidity and textural properties. Microporous and Mesoporous Materials. ISSN 1387-1811. Vol. 323 (2021), pp. 1-9pt_PT
dc.identifier.doi10.1016/j.micromeso.2021.111170pt_PT
dc.identifier.eissn1873-3093
dc.identifier.issn1387-1811
dc.identifier.urihttp://hdl.handle.net/10400.21/13828
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation57/2016 - FCT/European Commissionpt_PT
dc.relationCentro de Química Estrutural
dc.relationCentro de Química Estrutural
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S1387181121002961?via%3Dihubpt_PT
dc.subjectFaujasitept_PT
dc.subjectGuaiacolpt_PT
dc.subjectAdsorptionpt_PT
dc.subjectAciditypt_PT
dc.subjectBio-oils co-processingpt_PT
dc.titleBio-oils/FCC co-processing: insights into the adsorption of guaiacol on Y zeolites with distinct acidity and textural propertiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentro de Química Estrutural
oaire.awardTitleCentro de Química Estrutural
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00100%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00100%2F2020/PT
oaire.citation.endPage9pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMicroporous and Mesoporous Materialspt_PT
oaire.citation.volume323pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSilva
person.givenNameJoão Miguel Alves da
person.identifierfWmw7kEAAAAJ
person.identifier.ciencia-id3D1F-BD3A-4A9D
person.identifier.orcid0000-0003-1244-6483
person.identifier.scopus-author-id16317291000
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
relation.isAuthorOfPublication36449517-d0f7-4619-aae3-81af776b82fd
relation.isAuthorOfPublication.latestForDiscovery36449517-d0f7-4619-aae3-81af776b82fd
relation.isProjectOfPublication4ca2f791-5aae-48f8-ac70-bde2e34d442a
relation.isProjectOfPublication3fd80218-cd4e-4e84-8085-013e270408cd
relation.isProjectOfPublication.latestForDiscovery4ca2f791-5aae-48f8-ac70-bde2e34d442a

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Bio-oils_JMSilva.pdf
Size:
3 MB
Format:
Adobe Portable Document Format
Download

Collections

ISEL - Eng. Quim. Biol. - Artigos