Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/36704
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dc.contributor.authorJulião, Dianapt_PT
dc.contributor.authorGomes, Ana C.pt_PT
dc.contributor.authorCunha-Silva, Luíspt_PT
dc.contributor.authorValença, Ritapt_PT
dc.contributor.authorRibeiro, Jorge C.pt_PT
dc.contributor.authorPillinger, Martynpt_PT
dc.contributor.authorde Castro, Baltazarpt_PT
dc.contributor.authorGonçalves, Isabel S.pt_PT
dc.contributor.authorBalula, Salete S.pt_PT
dc.date.accessioned2023-03-28T15:47:53Z-
dc.date.available2023-03-28T15:47:53Z-
dc.date.issued2020-01-05-
dc.identifier.issn0926-860Xpt_PT
dc.identifier.urihttp://hdl.handle.net/10773/36704-
dc.description.abstractHighly efficient, deep desulfurization of a multi-component model diesel containing benzothiophene (BT), dibenzothiophene (DBT) and 4,6-dimethyldibenzothiophene (4,6-DMDBT) has been achieved by using the peroxophosphomolybdate [(n-C4H9)4N]3{PO4[MoO(O2)2]4} (Q3PMo4) directly as catalyst, and aqueous H2O2 as oxidant. Q3PMo4 behaves as a heterogeneous catalyst in the complete oxidation of the various sulfur compounds to the corresponding sulfones within 3 h at 70 °C, using a relatively low H2O2/S molar ratio of 3.7, and could be recycled for ten times with only a minimal decrease in activity. A study was performed to adapt the catalyst Q3PMo4 for the removal of sulfur from a real untreated diesel while maintaining a low, economically desirable, H2O2/S molar ratio of 3.7. The highest desulfurization performance was achieved in the presence of an extraction solvent during the catalytic oxidative stage, reinforced by two extraction steps before and after sulfur oxidation. Under these conditions, the sulfur content of the real diesel was reduced from 2300 to 500 ppm (78% desulfurization efficiency) after 3 h.pt_PT
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F50006%2F2019/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FCTM%2F50011%2F2019/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBD%2F102783%2F2014/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F111899%2F2015/PTpt_PT
dc.rightsopenAccesspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectOxidative desulfurizationpt_PT
dc.subjectDieselpt_PT
dc.subjectHydrogen peroxidept_PT
dc.subjectDibenzothiophenept_PT
dc.subjectPeroxophosphomolybdatept_PT
dc.titleA sustainable peroxophosphomolybdate/H2O2 system for the oxidative removal of organosulfur compounds from simulated and real high-sulfur dieselspt_PT
dc.typearticlept_PT
dc.description.versionpublishedpt_PT
dc.peerreviewedyespt_PT
degois.publication.titleApplied Catalysis A: Generalpt_PT
degois.publication.volume589pt_PT
dc.identifier.doi10.1016/j.apcata.2019.117154pt_PT
dc.identifier.essn1873-3875pt_PT
dc.identifier.articlenumber117154pt_PT
Appears in Collections:CICECO - Artigos
DQ - Artigos

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