Catalyst formulation to avoid reaction runaway during diesel soot combustion

Autores
Peralta, María Ariela; Gross, Martin Sebastian; Ulla, Maria Alicia del H.; Querini, Carlos Alberto
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Soot combustion is a highly exothermic reaction. The aim of this work is to demonstrate that catalyst overheating by reaction runaway can be moderated by the proper selection of a catalyst support, La2O3 being a good choice for this purpose. In K/La2O3 catalysts, lanthanum compounds decompose in the same temperature range in which soot combustion occurs, thus absorbing part of the heat released in the combustion process and avoiding the reaction runaway. Taking into account this property of catalysts supported on La2O3, the catalytic behavior of K/La2O3 and K/CeO2 was compared under reaction conditions in which a reaction runaway could occur. Catalytic activity was followed by temperature-programmed oxidation, and the heats evolved were measured by differential scanning calorimetry. Catalysts were characterized by BET, XRD, DSC and FTIR. Tight and loose contact between catalyst and soot was analyzed, and the effect of NO in the gas phase was studied.
Fil: Peralta, María Ariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Gross, Martin Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Ulla, Maria Alicia del H.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Querini, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Materia
Cerium
Diesel Soot
Lanthanum
Potassium
Reaction Runaway
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/57175
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/57175
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Catalyst formulation to avoid reaction runaway during diesel soot combustionPeralta, María ArielaGross, Martin SebastianUlla, Maria Alicia del H.Querini, Carlos AlbertoCeriumDiesel SootLanthanumPotassiumReaction Runawayhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Soot combustion is a highly exothermic reaction. The aim of this work is to demonstrate that catalyst overheating by reaction runaway can be moderated by the proper selection of a catalyst support, La2O3 being a good choice for this purpose. In K/La2O3 catalysts, lanthanum compounds decompose in the same temperature range in which soot combustion occurs, thus absorbing part of the heat released in the combustion process and avoiding the reaction runaway. Taking into account this property of catalysts supported on La2O3, the catalytic behavior of K/La2O3 and K/CeO2 was compared under reaction conditions in which a reaction runaway could occur. Catalytic activity was followed by temperature-programmed oxidation, and the heats evolved were measured by differential scanning calorimetry. Catalysts were characterized by BET, XRD, DSC and FTIR. Tight and loose contact between catalyst and soot was analyzed, and the effect of NO in the gas phase was studied.Fil: Peralta, María Ariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Gross, Martin Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Ulla, Maria Alicia del H.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Querini, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaElsevier Science2009-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/57175Peralta, María Ariela; Gross, Martin Sebastian; Ulla, Maria Alicia del H.; Querini, Carlos Alberto; Catalyst formulation to avoid reaction runaway during diesel soot combustion; Elsevier Science; Applied Catalysis A: General; 367; 1-2; 10-2009; 59-690926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2009.07.027info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:41:58Zoai:ri.conicet.gov.ar:11336/57175instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:41:58.868CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Catalyst formulation to avoid reaction runaway during diesel soot combustion
title Catalyst formulation to avoid reaction runaway during diesel soot combustion
spellingShingle Catalyst formulation to avoid reaction runaway during diesel soot combustion
Peralta, María Ariela
Cerium
Diesel Soot
Lanthanum
Potassium
Reaction Runaway
title_short Catalyst formulation to avoid reaction runaway during diesel soot combustion
title_full Catalyst formulation to avoid reaction runaway during diesel soot combustion
title_fullStr Catalyst formulation to avoid reaction runaway during diesel soot combustion
title_full_unstemmed Catalyst formulation to avoid reaction runaway during diesel soot combustion
title_sort Catalyst formulation to avoid reaction runaway during diesel soot combustion
dc.creator.none.fl_str_mv Peralta, María Ariela
Gross, Martin Sebastian
Ulla, Maria Alicia del H.
Querini, Carlos Alberto
author Peralta, María Ariela
author_facet Peralta, María Ariela
Gross, Martin Sebastian
Ulla, Maria Alicia del H.
Querini, Carlos Alberto
author_role author
author2 Gross, Martin Sebastian
Ulla, Maria Alicia del H.
Querini, Carlos Alberto
author2_role author
author
author
dc.subject.none.fl_str_mv Cerium
Diesel Soot
Lanthanum
Potassium
Reaction Runaway
topic Cerium
Diesel Soot
Lanthanum
Potassium
Reaction Runaway
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Soot combustion is a highly exothermic reaction. The aim of this work is to demonstrate that catalyst overheating by reaction runaway can be moderated by the proper selection of a catalyst support, La2O3 being a good choice for this purpose. In K/La2O3 catalysts, lanthanum compounds decompose in the same temperature range in which soot combustion occurs, thus absorbing part of the heat released in the combustion process and avoiding the reaction runaway. Taking into account this property of catalysts supported on La2O3, the catalytic behavior of K/La2O3 and K/CeO2 was compared under reaction conditions in which a reaction runaway could occur. Catalytic activity was followed by temperature-programmed oxidation, and the heats evolved were measured by differential scanning calorimetry. Catalysts were characterized by BET, XRD, DSC and FTIR. Tight and loose contact between catalyst and soot was analyzed, and the effect of NO in the gas phase was studied.
Fil: Peralta, María Ariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Gross, Martin Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Ulla, Maria Alicia del H.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Querini, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
description Soot combustion is a highly exothermic reaction. The aim of this work is to demonstrate that catalyst overheating by reaction runaway can be moderated by the proper selection of a catalyst support, La2O3 being a good choice for this purpose. In K/La2O3 catalysts, lanthanum compounds decompose in the same temperature range in which soot combustion occurs, thus absorbing part of the heat released in the combustion process and avoiding the reaction runaway. Taking into account this property of catalysts supported on La2O3, the catalytic behavior of K/La2O3 and K/CeO2 was compared under reaction conditions in which a reaction runaway could occur. Catalytic activity was followed by temperature-programmed oxidation, and the heats evolved were measured by differential scanning calorimetry. Catalysts were characterized by BET, XRD, DSC and FTIR. Tight and loose contact between catalyst and soot was analyzed, and the effect of NO in the gas phase was studied.
publishDate 2009
dc.date.none.fl_str_mv 2009-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/57175
Peralta, María Ariela; Gross, Martin Sebastian; Ulla, Maria Alicia del H.; Querini, Carlos Alberto; Catalyst formulation to avoid reaction runaway during diesel soot combustion; Elsevier Science; Applied Catalysis A: General; 367; 1-2; 10-2009; 59-69
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/57175
identifier_str_mv Peralta, María Ariela; Gross, Martin Sebastian; Ulla, Maria Alicia del H.; Querini, Carlos Alberto; Catalyst formulation to avoid reaction runaway during diesel soot combustion; Elsevier Science; Applied Catalysis A: General; 367; 1-2; 10-2009; 59-69
0926-860X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2009.07.027
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083529402744832
score 12.891075

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