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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleCatalytic wet-air oxidation of lignin in a three-phase reactor with aromatic aldehyde productionpt_BR
dc.contributor.authorSales, F.G.pt_BR
dc.contributor.authorAbreu, C. A. M.pt_BR
dc.contributor.authorPereira, J. A. F. R.pt_BR
unicamp.authorSales, F.G.pt_BR
unicamp.authorAbreu, C. A. M.pt_BR
unicamp.authorPereira, J. A. F. R. Universidade Estatual de Campinas Estadual de Campinas Faculdade de Engenharia Química Departamento de Engenharia de Sistemas Químicos e Informáticapt_BR
dc.subjectcatalytic wet air-oxidationpt_BR
dc.subjectsyringaldehyde p-hydroxybenzaldehydept_BR
dc.subjectpalladium catalystpt_BR
dc.subjectthree-phase fluidized-bed reactorpt_BR
dc.description.abstractIn the present work a process of catalytic wet air oxidation of lignin obtained from sugar-cane bagasse is developed with the objective of producing vanillin, syringaldehyde and p-hydroxybenzaldehyde in a continuous regime. Palladium supported on g-alumina was used as the catalyst. The reactions in the lignin degradation and aldehyde production were described by a kinetic model as a system of complex parallel and series reactions, in which pseudo-first-order steps are found. For the purpose of producing aromatic aldehydes in continuous regime, a three-phase fluidized reactor was built, and it was operated using atmospheric air as the oxidizer. The best yield in aromatic aldehydes was of 12%. The experimental results were compatible with those values obtained by the pseudo-heterogeneous axial dispersion model (PHADM) applied to the liquid phase.en
dc.relation.ispartofBrazilian Journal of Chemical Engineeringpt_BR
dc.publisherBrazilian Society of Chemical Engineeringpt_BR
dc.identifier.citationBrazilian Journal of Chemical Engineering. Brazilian Society of Chemical Engineering, v. 21, n. 2, p. 211-218, 2004.pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
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dc.description.provenanceMade available in DSpace on 2015-11-26T11:45:23Z (GMT). No. of bitstreams: 2 S0104-66322004000200010.pdf: 174698 bytes, checksum: e7718c7e1f3390bf5da83dfca42480c6 (MD5) S0104-66322004000200010.pdf.txt: 19607 bytes, checksum: 14d36e41a08ca226979a0deb13b765d8 (MD5) Previous issue date: 2004-06-01en
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