Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst

Abstract. The kinetic study of Ce-Zr-Mo catalysts on toluene partial oxidation to benzaldehyde in vapor phase is presented in this work. Three different families of mixed oxides prepared by pseudo sol gel method were characterized. The effect of the synthesis method on the catalysts performance was...

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Autores:: Díaz Chaparro, Geraldine

Tipo de recurso:

Fecha de publicación:: 2016

Institución:: Universidad Nacional de Colombia

Repositorio:: Universidad Nacional de Colombia

Idioma:: spa

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dc.title.spa.fl_str_mv	Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst
title	Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst
spellingShingle	Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst 53 Física / Physics 62 Ingeniería y operaciones afines / Engineering 66 Ingeniería química y Tecnologías relacionadas/ Chemical engineering Mixed oxides Catalysts Toluene Benzaldehyde Kinetic study Estudio cinético Óxidos mixtos Catalizadores Tolueno Benzaldehído
title_short	Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst
title_full	Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst
title_fullStr	Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst
title_full_unstemmed	Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst
title_sort	Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst
dc.creator.fl_str_mv	Díaz Chaparro, Geraldine
dc.contributor.author.spa.fl_str_mv	Díaz Chaparro, Geraldine
dc.contributor.spa.fl_str_mv	Vargas Sáenz, Julio Cesar
dc.subject.ddc.spa.fl_str_mv	53 Física / Physics 62 Ingeniería y operaciones afines / Engineering 66 Ingeniería química y Tecnologías relacionadas/ Chemical engineering
topic	53 Física / Physics 62 Ingeniería y operaciones afines / Engineering 66 Ingeniería química y Tecnologías relacionadas/ Chemical engineering Mixed oxides Catalysts Toluene Benzaldehyde Kinetic study Estudio cinético Óxidos mixtos Catalizadores Tolueno Benzaldehído
dc.subject.proposal.spa.fl_str_mv	Mixed oxides Catalysts Toluene Benzaldehyde Kinetic study Estudio cinético Óxidos mixtos Catalizadores Tolueno Benzaldehído
description	Abstract. The kinetic study of Ce-Zr-Mo catalysts on toluene partial oxidation to benzaldehyde in vapor phase is presented in this work. Three different families of mixed oxides prepared by pseudo sol gel method were characterized. The effect of the synthesis method on the catalysts performance was evaluated by changing procedure steps and the interaction between the active phase and the support of the materials. For the modified pseudo sol gel method samples, the changes of structural properties evidence the predominant role of the Mo species on the catalyst surface promoting total oxidation. The synthesis effect was also evidenced on materials which exhibit ceramic structures, leading heterogeneous surface for deposited catalysts and dispersed grains for integrate catalysts. The theoretical composition proposed, as well as the synthesis methodology lead to solids, which exhibit multiple phases and polycrystallinity. The kinetic study was made for the most selective catalyst evaluated (Ce2.65Zr0.35Mo3O14). The mathematical regression fitting for Mars and Van Krevelen kinetic model present less relative error with respect to the experimental data, compared with three LHHW kinetic models and power law rate model evaluated.
publishDate	2016
dc.date.issued.spa.fl_str_mv	2016-02-10
dc.date.accessioned.spa.fl_str_mv	2019-07-02T15:11:40Z
dc.date.available.spa.fl_str_mv	2019-07-02T15:11:40Z
dc.type.spa.fl_str_mv	Trabajo de grado - Maestría
dc.type.driver.spa.fl_str_mv	info:eu-repo/semantics/masterThesis
dc.type.version.spa.fl_str_mv	info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv	Text
dc.type.redcol.spa.fl_str_mv	http://purl.org/redcol/resource_type/TM
status_str	acceptedVersion
dc.identifier.uri.none.fl_str_mv	https://repositorio.unal.edu.co/handle/unal/59003
dc.identifier.eprints.spa.fl_str_mv	http://bdigital.unal.edu.co/56147/
url	https://repositorio.unal.edu.co/handle/unal/59003 http://bdigital.unal.edu.co/56147/
dc.language.iso.spa.fl_str_mv	spa
language	spa
dc.relation.ispartof.spa.fl_str_mv	Universidad Nacional de Colombia Sede Bogotá Facultad de Ingeniería Departamento de Ingeniería Química y Ambiental Ingeniería Química Ingeniería Química
dc.relation.references.spa.fl_str_mv	Díaz Chaparro, Geraldine (2016) Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst. Maestría thesis, Universidad Nacional de Colombia-Sede Bogotá.
dc.rights.spa.fl_str_mv	Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv	http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv	Atribución-NoComercial 4.0 Internacional
dc.rights.uri.spa.fl_str_mv	http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv	info:eu-repo/semantics/openAccess
rights_invalid_str_mv	Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv	openAccess
dc.format.mimetype.spa.fl_str_mv	application/pdf
institution	Universidad Nacional de Colombia
bitstream.url.fl_str_mv	https://repositorio.unal.edu.co/bitstream/unal/59003/1/Geraldine.D%c3%adaz.2016.pdf https://repositorio.unal.edu.co/bitstream/unal/59003/2/Geraldine.D%c3%adaz.2016.pdf.jpg
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repository.name.fl_str_mv	Repositorio Institucional Universidad Nacional de Colombia
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spelling	Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Vargas Sáenz, Julio CesarDíaz Chaparro, Geraldineadf3a11b-73ed-45c0-ab01-b47dca60cb963002019-07-02T15:11:40Z2019-07-02T15:11:40Z2016-02-10https://repositorio.unal.edu.co/handle/unal/59003http://bdigital.unal.edu.co/56147/Abstract. The kinetic study of Ce-Zr-Mo catalysts on toluene partial oxidation to benzaldehyde in vapor phase is presented in this work. Three different families of mixed oxides prepared by pseudo sol gel method were characterized. The effect of the synthesis method on the catalysts performance was evaluated by changing procedure steps and the interaction between the active phase and the support of the materials. For the modified pseudo sol gel method samples, the changes of structural properties evidence the predominant role of the Mo species on the catalyst surface promoting total oxidation. The synthesis effect was also evidenced on materials which exhibit ceramic structures, leading heterogeneous surface for deposited catalysts and dispersed grains for integrate catalysts. The theoretical composition proposed, as well as the synthesis methodology lead to solids, which exhibit multiple phases and polycrystallinity. The kinetic study was made for the most selective catalyst evaluated (Ce2.65Zr0.35Mo3O14). The mathematical regression fitting for Mars and Van Krevelen kinetic model present less relative error with respect to the experimental data, compared with three LHHW kinetic models and power law rate model evaluated.Resumen El estudio cinético de la oxidación parcial de tolueno a benzaldehído en fase de vapor usando catalizadores de Ce-Zr-Mo es presentado en este trabajo. Tres diferentes familias de óxidos mixtos preparados por el método pseudo sol gel fueron caracterizadas. El efecto del método de síntesis en el desempeño de los catalizadores fue evaluado mediante el cambio de pasos de la metodología y la interacción entre la fase activa y el soporte de los materiales. Para los catalizadores obtenidos por el método pseudo sol gel modificado, los cambios en las propiedades estructurales evidencian el papel predominante de las especies de molibdeno en la superficie del material, promoviendo la oxidación total. El efecto del método de síntesis fue también evidenciado en materiales que mostraron estructuras cerámicas, obteniendo como resultado una superficie irregular para los catalizadores depositados y granos dispersos para los catalizadores integrados. La composición teórica propuesta, al igual que el método de síntesis usado permitieron la formación de sólidos que exibieron múltiples fases y policristalidad. El estudio cinético fue hecho para el catalizador más selectivo entre los evaluados (Ce2.65Zr0.35Mo3O14). La regresión matemática ajustó para el modelo cinético Mars and Van Krevelen, presentando menor error relativo con respecto al conjunto de datos experimentales, comparado con tres diferentes modelos cinéticos LHHW y el modelo de ley de potencias que también se evaluaron.Maestríaapplication/pdfspaUniversidad Nacional de Colombia Sede Bogotá Facultad de Ingeniería Departamento de Ingeniería Química y Ambiental Ingeniería QuímicaIngeniería QuímicaDíaz Chaparro, Geraldine (2016) Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst. Maestría thesis, Universidad Nacional de Colombia-Sede Bogotá.53 Física / Physics62 Ingeniería y operaciones afines / Engineering66 Ingeniería química y Tecnologías relacionadas/ Chemical engineeringMixed oxidesCatalystsTolueneBenzaldehydeKinetic studyEstudio cinéticoÓxidos mixtosCatalizadoresToluenoBenzaldehídoKinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalystTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TMORIGINALGeraldine.Díaz.2016.pdfapplication/pdf2409013https://repositorio.unal.edu.co/bitstream/unal/59003/1/Geraldine.D%c3%adaz.2016.pdf3f236b324470d6c97ac06911dc7feaddMD51THUMBNAILGeraldine.Díaz.2016.pdf.jpgGeraldine.Díaz.2016.pdf.jpgGenerated Thumbnailimage/jpeg5208https://repositorio.unal.edu.co/bitstream/unal/59003/2/Geraldine.D%c3%adaz.2016.pdf.jpg75035bc54573bf18303e63499f812f9eMD52unal/59003oai:repositorio.unal.edu.co:unal/590032024-04-05 23:42:03.376Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co

Kinetic study of toluene partial oxidation to benzaldehyde, using a Ce – Zr – Mo mixed oxide as catalyst

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