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dc.creatorGonçalves, Vinicius O. O.-
dc.creatorSouza, Priscilla M. de-
dc.creatorSilva, Victor Teixeira da-
dc.creatorNoronha, Fabio B.-
dc.creatorRichard, Frédéric-
dc.date.accessioned2019-08-16T17:12:15Z-
dc.date.available2019-08-16T17:12:15Z-
dc.date.issued2017-05-15-
dc.identifier.citationGONÇALVES, V. O. O. et al. Kinetics of the hydrodeoxygenation of cresol isomers over Ni2P/SiO2: proposals of nature of deoxygenation active sites based on an experimental study. Applied Catalysis. B: Environmental, [S.l.], v. 205, p. 357-367, May 2017. DOI: 10.1016/j.apcatb.2016.12.051.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0926337316309870pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/36295-
dc.description.abstractThe hydrodeoxygenation of cresols (m-cresol, p-cresol and o-cresol) over Ni2P/SiO2 was carried out between 250 and 340 °C under high hydrogen pressure (between 1.6 and 3.2 MPa). XRD demonstrated that the desired Ni2P phase was obtained at 450 °C using 4 MPa of H2. The catalytic behavior of Ni2P/SiO2 for the transformation of cresols indicated that these compounds were deoxygenated by two different pathways, which involved different reactions such as hydrogenolysis, hydrogenation, dehydration and isomerization. Using these experimental conditions, i.e. under hydrogen pressure, the catalyst used exhibited a remarkable stability, at least during 20 h. An effect of the position of the methyl group in cresol isomers was highlighted, m-cresol being the most reactive whereas o-cresol the less reactive. In addition, an increase of temperature and hydrogen pressure allowed to ensure a high deoxygenation degree of phenolic reactants even at low level of conversion (less than 20%). The participation of different active sites and adsorption modes were proposed to explain the different products observed and their distribution.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceApplied Catalysis. B: Environmentalpt_BR
dc.subjectO-cresolpt_BR
dc.subjectM-cresolpt_BR
dc.subjectP-cresolpt_BR
dc.subjectHDOpt_BR
dc.subjectNickel phosphide catalystspt_BR
dc.subjectNi2Ppt_BR
dc.subjectKineticspt_BR
dc.subjectOrto-cresolpt_BR
dc.subjectMeta-cresolpt_BR
dc.subjectPara-cresolpt_BR
dc.subjectHydrodeoxygenation (HDO)pt_BR
dc.titleKinetics of the hydrodeoxygenation of cresol isomers over Ni2P/SiO2: proposals of nature of deoxygenation active sites based on an experimental studypt_BR
dc.typeArtigopt_BR
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