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Mesoporous Silica vs. Organosilica Composites to Desulfurize Diesel

2019-11-14Artigo científico Acesso aberto
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dc.contributor.authorRibeiro, Susana O.
dc.contributor.authorGranadeiro, Carlos M.
dc.contributor.authorCorvo, Marta C.
dc.contributor.authorPires, João
dc.contributor.authorCampos-Martin, José M.
dc.contributor.authorde Castro, Baltazar
dc.contributor.authorBalula, Salete S.
dc.contributor.institutionDCM - Departamento de Ciência dos Materiais
dc.contributor.institutionCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
dc.contributor.pblFrontiers Media
dc.date.accessioned2023-01-05T22:12:47Z
dc.date.available2023-01-05T22:12:47Z
dc.date.issued2019-11-14
dc.descriptionPOCI-01-0145-FEDER-007265. UID/QUI/50006/2019. POCI-01-0145-FEDER-007688. PTNMR-ROTEIRO/0031/2013. PINFRA/22161/2016.
dc.description.abstractThe monolacunary Keggin-type [PW11O39]7− (PW11) heteropolyanion was immobilized on porous framework of mesoporous silicas, namely SBA-15 and an ethylene-bridged periodic mesoporous organosilica (PMOE). The supports were functionalized with a cationic group (N-trimethoxysilypropyl-N, N, N-trimethylammonium, TMA) for the successful anchoring of the anionic polyoxometalate. The PW11@TMA-SBA-15 and PW11@TMA-PMOE composites were evaluated as heterogeneous catalysts in the oxidative desulfurization of a model diesel. The PW11@TMA-SBA-15 catalyst showed a remarkable desulfurization performance by reaching ultra-low sulfur levels (<10 ppm) after only 60 min using either a biphasic extractive and catalytic oxidative desulfurization (ECODS) system (1:1 MeCN/diesel) or a solvent-free catalytic oxidative desulfurization (CODS) system. Furthermore, the mesoporous silica composite was able to be recycled for six consecutive cycles without any apparent loss of activity. The promising results have led to the application of the catalyst in the desulfurization of an untreated real diesel supplied by CEPSA (1,335 ppm S) using the biphasic system. The system has proved to be a highly efficient process by reaching desulfurization values higher than 90% for real diesel during three consecutive cycles.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent1601801
dc.identifier.doi10.3389/fchem.2019.00756
dc.identifier.issn2296-2646
dc.identifier.otherPURE: 15890669
dc.identifier.otherPURE UUID: 0987ca0f-b91e-4fac-8bd0-7434d9488465
dc.identifier.otherScopus: 85075996982
dc.identifier.otherPubMed: 31799236
dc.identifier.otherPubMedCentral: PMC6868090
dc.identifier.otherWOS: 000499824800001
dc.identifier.urihttp://hdl.handle.net/10362/147030
dc.identifier.urlhttps://www.scopus.com/pages/publications/85075996982
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147333/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F95571%2F2013/PT
dc.relationADVANCED HETEROGENEOUS POROUS CATALYSTS FOR DESULFURIZATION OF DIESEL
dc.subjectfuels
dc.subjectheterogeneous catalysis
dc.subjectmesoporous silica
dc.subjectoxidative desulfurization
dc.subjectpolyoxometalate (POM)
dc.subjectGeneral Chemistry
dc.titleMesoporous Silica vs. Organosilica Composites to Desulfurize Dieselen
dc.typejournal article
degois.publication.titleFrontiers in Chemistry
degois.publication.volume7
dspace.entity.typePublication
oaire.awardNumberUID/CTM/50025/2013
oaire.awardNumberSFRH/BD/95571/2013
oaire.awardTitleADVANCED HETEROGENEOUS POROUS CATALYSTS FOR DESULFURIZATION OF DIESEL
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FCTM%2F50025%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F95571%2F2013/PT
oaire.fundingStream5876
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.rightsopenAccess
relation.isProjectOfPublicationd94394ca-c419-4430-9491-83be2361e7a8
relation.isProjectOfPublication3cb48a87-adb4-47a6-8d58-3bf1592b3984
relation.isProjectOfPublication.latestForDiscoveryd94394ca-c419-4430-9491-83be2361e7a8

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