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Effective zinc-substituted keggin composite to catalyze the removal of sulfur from real diesels under a solvent-free system

2019-10-09Artigo cientĆ­fico Acesso restrito
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dc.contributor.authorRibeiro, Susana
dc.contributor.authorGranadeiro, Carlos
dc.contributor.authorAlmeida, Pedro L.
dc.contributor.authorPires, JoĆ£o
dc.contributor.authorValenƧa, Rita
dc.contributor.authorCampos-Martin, J. M.
dc.contributor.authorRibeiro, Jorge C.
dc.contributor.authorDe Castro, Baltazar
dc.contributor.authorBalula, Salete
dc.date.accessioned2020-02-13T12:28:34Z
dc.date.available2020-02-13T12:28:34Z
dc.date.issued2019-10-09
dc.description.abstractThe Keggin phosphotungstate (PW12) and its zinc derivative (PW11Zn) were tested as oxidative catalysts for desulfurization processes using simulated and real diesels. These compounds were used as homogeneous catalysts, while the corresponding SBA-15 composites were used as heterogeneous catalysts. The comparison of their catalytic performance demonstrated that the zinc-substituted polyoxometalate is more eļ¬ƒcient than the plenary PW12 structure. Additionally, using the heterogeneous PW11Zn@aptesSBA-15, the sustainability and catalytic eļ¬ƒciency was largely improved, allowing the total sulfur removal from model diesel after 1 h using a small amount of oxidant (H2O2/S = 4) under an oxidative solvent-free system. The desulfurization of real diesels was performed under similar conditions, achieving 87.8% of eļ¬ƒciency using the PW11Zn@aptesSBA-15 catalyst. Furthermore, the catalyst maintained its activity over consecutive desulfurization cycles. The cost-eļ¬€ective operational conditions achieved with PW11Zn@aptesSBA-15 turn this into a promising material to be used in an industrial scale to treat diesel.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRIBEIRO, Susana O.; [et al] ā€“ Effective zinc-substituted keggin composite to catalyze the removal of sulfur from real diesels under a solvent-free system. Industrial & Engineering Chemistry Research. ISSN 0888-5885. Vol. 58, N.Āŗ 40 (2019), pp- 18540-18549pt_PT
dc.identifier.doihttps://doi.org/10.1021/acs.iecr.9b02340pt_PT
dc.identifier.issn0888-5885
dc.identifier.issn1520-5045
dc.identifier.urihttp://hdl.handle.net/10400.21/11095
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Chemical Societypt_PT
dc.relationPOCI-01-0145FEDER-007265 - ) Ref. LAQV, REQUIMTE - FCTpt_PT
dc.relation(POCI-01-0145-FEDER-007688 - CENIMAT, I3Npt_PT
dc.relation.publisherversionhttps://pubs.acs.org/doi/pdf/10.1021/acs.iecr.9b02340pt_PT
dc.subjectSulfurpt_PT
dc.subjectCompositespt_PT
dc.subjectCatalystspt_PT
dc.subjectExtraction desulfurizationpt_PT
dc.titleEffective zinc-substituted keggin composite to catalyze the removal of sulfur from real diesels under a solvent-free systempt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUID/QUI/50006/2013
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F50006%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FCTM%2F50025%2F2013/PT
oaire.citation.endPage18549pt_PT
oaire.citation.issue40pt_PT
oaire.citation.startPage18540pt_PT
oaire.citation.titleIndustrial and Engineering Chemistry Researchpt_PT
oaire.citation.volume58pt_PT
oaire.fundingStream5876
oaire.fundingStream5876
person.familyNameRibeiro
person.familyNameGranadeiro
person.familyNameMarques de Almeida
person.familyNamePires
person.familyNameCampos-Martin
person.familyNamede Castro
person.familyNameBalula
person.givenNameSusana
person.givenNameCarlos
person.givenNamePedro
person.givenNameJoĆ£o
person.givenNameJose M.
person.givenNameBaltazar
person.givenNameSalete
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person.identifier.orcid0000-0002-7402-9004
person.identifier.orcid0000-0002-0986-6607
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person.identifier.orcid0000-0002-8374-558X
person.identifier.orcid0000-0002-7913-9851
person.identifier.orcid0000-0001-9097-0171
person.identifier.orcid0000-0002-8984-0473
person.identifier.ridD-6302-2013
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person.identifier.scopus-author-id16232273400
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundaĆ§Ć£o para a CiĆŖncia e a Tecnologia
project.funder.nameFundaĆ§Ć£o para a CiĆŖncia e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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