Por favor, use este identificador para citar o enlazar este ítem: https://hdl.handle.net/10495/13121
Registro completo de metadatos
Campo DC Valor Lengua/Idioma
dc.contributor.authorAlarcón Durango, Edwin Alexis-
dc.contributor.authorVilla Holguín, Aída Luz-
dc.date.accessioned2020-01-14T03:12:26Z-
dc.date.available2020-01-14T03:12:26Z-
dc.date.issued2015-
dc.identifier.citationGrajales González, E. J., Alarcón Durango, E. A., and Villa, A. L. (2015). Kinetics of depolymerization of paraformaldehyde obtained by thermogravimetric analysis. Thermochimica Acta, 609, 49-60. https://doi.org/10.1016/j.tca.2015.04.016spa
dc.identifier.issn0040-6031-
dc.identifier.urihttp://hdl.handle.net/10495/13121-
dc.description.abstractABSTRACT: Solid paraformaldehyde is a source of formaldehyde that is preferred when anhydrous conditions in chemical processes are required. In this contribution, several depolymerization models were proposed for paraformaldehyde in powder (PFP) and prills (PFS), and they were validated with experimental thermogravimetric analysis (TGA). For description of PFP depolymerization, a model of a single step was adequate, and for PFS the best model included two simultaneous mechanisms. Kinetic models were determined using Master Plot method; for PFS, small intervals of conversion were used in order to obtain the best model at each finite point of the progress of reaction. Apparent activation energies (Ea) were obtained by isoconversional methods. For PFP, Ea was 31.7 kJ mol-1 and the model corresponded to Avrami-Erofeyev 2 (A2). For PFS decomposition, the activation energy of the two mechanisms was Ea = 105.4 kJ mol-1 for a contracting volume (R3) model and Ea = 48.4 kJ mol-1 for the Avrami-Erofeyev model.spa
dc.format.extent11spa
dc.format.mimetypeapplication/pdfspa
dc.language.isoengspa
dc.publisherElsevierspa
dc.type.hasversioninfo:eu-repo/semantics/publishedVersionspa
dc.rightsAtribución-NoComercial-SinDerivadas 2.5 Colombia*
dc.rightsinfo:eu-repo/semantics/openAccessspa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/co/*
dc.subjectCinética-
dc.subjectDespolimerización-
dc.subjectParaformaldehído-
dc.subjectAnálisis termogravimétrico-
dc.titleKinetics of depolymerization of paraformaldehyde obtained by thermogravimetric analysisspa
dc.typeinfo:eu-repo/semantics/articlespa
dc.publisher.groupCatálisis Ambientalspa
dc.identifier.doi10.1016/j.tca.2015.04.016-
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85spa
dc.rights.accessrightshttp://purl.org/coar/access_right/c_abf2spa
dc.identifier.eissn1872-762X-
oaire.citationtitleThermochimica Actaspa
oaire.citationstartpage49spa
oaire.citationendpage60spa
oaire.citationvolume609spa
dc.rights.creativecommonshttps://creativecommons.org/licenses/by-nc-nd/4.0/spa
dc.publisher.placeHolandaspa
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1spa
dc.type.redcolhttps://purl.org/redcol/resource_type/ARTspa
dc.type.localArtículo de investigaciónspa
Aparece en las colecciones: Artículos de Revista en Ingeniería

Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
AlarconEdwin_2015_KineticsDepolymerizationParaformaldehyde.pdfArtículo de investigación2.37 MBAdobe PDFVisualizar/Abrir


Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons Creative Commons