The multiple benefits of glycerol conversion to acrolein and acrylic acid catalyzed by vanadium oxides supported on micro-mesoporous MFI zeolites

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dc.contributor.authorPossato, Luiz G. [UNESP]
dc.contributor.authorChaves, Thiago F. [UNESP]
dc.contributor.authorCassinelli, Wellington H. [UNESP]
dc.contributor.authorPulcinelli, Sandra H. [UNESP]
dc.contributor.authorSantilli, Celso V. [UNESP]
dc.contributor.authorMartins, Leandro [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:33:47Z
dc.date.available2018-12-11T17:33:47Z
dc.date.issued2017-01-01
dc.description.abstractThe ZSM-5 zeolite (MFI structure, Si/Al = 40) was treated using NaOH and either oxalic acid or HCl to obtain hierarchical materials with different characteristics, followed by impregnation with vanadium oxides (V2O5) to generate redox-active sites. The impact of the multiple treatments on the efficiency and stability of the catalysts in the conversion of glycerol to acrolein and acrylic acid was investigated and correlated with catalyst porosity, acidity, and chemical composition. The treated and impregnated V2O5 catalysts were subjected to XRD, 27Al NMR, nitrogen physisorption, TPD-NH3, TG, and UV–Vis analyses, in order to associate the properties of the catalysts with their activities. The studies showed that the catalytic performance of the materials depended on the acidic and textural properties of the zeolites, which influenced both the dispersion of V2O5 and its interaction with the acid sites of the supporting zeolites. All the catalysts provided conversion values exceeding 65%, even after 6 h on glycerol stream. The distribution of products strongly reflected the effects of pore formation, acid treatment with oxalic acid or HCl, and the presence of vanadium oxide. The effects of these modifications resulted in higher selectivity to acrolein and acrylic acid, a reduced rate of coke accumulation in the zeolite, and a longer catalyst lifetime.en
dc.description.affiliationInstituto de Química UNESP − Univ. Estadual Paulista, Rua Prof. Francisco Degni 55
dc.description.affiliationUnespInstituto de Química UNESP − Univ. Estadual Paulista, Rua Prof. Francisco Degni 55
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2013/10204-2
dc.description.sponsorshipIdFAPESP: 2013/50023-7
dc.description.sponsorshipIdFAPESP: 2014/11952-5
dc.format.extent20-28
dc.identifierhttp://dx.doi.org/10.1016/j.cattod.2016.08.005
dc.identifier.citationCatalysis Today, v. 289, p. 20-28.
dc.identifier.doi10.1016/j.cattod.2016.08.005
dc.identifier.file2-s2.0-85028271427.pdf
dc.identifier.issn0920-5861
dc.identifier.lattes5584298681870865
dc.identifier.orcid0000-0002-8356-8093
dc.identifier.scopus2-s2.0-85028271427
dc.identifier.urihttp://hdl.handle.net/11449/179119
dc.language.isoeng
dc.relation.ispartofCatalysis Today
dc.relation.ispartofsjr1,347
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAcrolein
dc.subjectAcrylic acid
dc.subjectGlycerol oxidehydration
dc.subjectMicro-mesoporous zeolites
dc.subjectV2O5/MFI catalyst
dc.titleThe multiple benefits of glycerol conversion to acrolein and acrylic acid catalyzed by vanadium oxides supported on micro-mesoporous MFI zeolitesen
dc.typeArtigo
unesp.author.lattes5584298681870865[5]
unesp.author.orcid0000-0002-8356-8093[5]

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