SO2 influence on the K/La2O3 soot combustion catalyst deactivation

Autores
Peralta, María Ariela; Ulla, Maria Alicia del H.; Querini, Carlos Alberto
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the present work, K/La2O3 was prepared and tested as a potential catalyst to be used in a diesel engine exhaust. The soot combustion activity was evaluated by TPO, and the NOx - catalyst interaction was studied using a microbalance experiment. The SO2 poisoning process and the regeneration of a poisoned K/La2O3 catalyst were analyzed. The fresh catalyst presented a good soot combustion activity. After being treated with a 1000 ppm SO2 stream, the catalyst was poisoned due to lanthanum sulfate and potassium sulfate formation.  The NOx treatment contributed to the K2(SO4) decomposition at the expense of extra La2(SO4)3 formation and the H2 treatment contributed to the La2(SO4)3 decomposition
Fil: Peralta, María Ariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; 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 ; 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 ; Argentina
Materia
Soot
Potassium
Lanthanum
So2
Deactivation
Regeneration
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:11336/65160
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/65160
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling SO2 influence on the K/La2O3 soot combustion catalyst deactivationPeralta, María ArielaUlla, Maria Alicia del H.Querini, Carlos AlbertoSootPotassiumLanthanumSo2DeactivationRegenerationhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2In the present work, K/La2O3 was prepared and tested as a potential catalyst to be used in a diesel engine exhaust. The soot combustion activity was evaluated by TPO, and the NOx - catalyst interaction was studied using a microbalance experiment. The SO2 poisoning process and the regeneration of a poisoned K/La2O3 catalyst were analyzed. The fresh catalyst presented a good soot combustion activity. After being treated with a 1000 ppm SO2 stream, the catalyst was poisoned due to lanthanum sulfate and potassium sulfate formation.  The NOx treatment contributed to the K2(SO4) decomposition at the expense of extra La2(SO4)3 formation and the H2 treatment contributed to the La2(SO4)3 decompositionFil: Peralta, María Ariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; 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 ; ArgentinaFil: Querini, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaElsevier Science2008-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/65160Peralta, María Ariela; Ulla, Maria Alicia del H.; Querini, Carlos Alberto; SO2 influence on the K/La2O3 soot combustion catalyst deactivation; Elsevier Science; Catalysis Today; 133-135; 1-4; 4-2008; 461-4660920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2007.11.031info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:48:43Zoai:ri.conicet.gov.ar:11336/65160instacron: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 14:48:44.152CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv SO2 influence on the K/La2O3 soot combustion catalyst deactivation
title SO2 influence on the K/La2O3 soot combustion catalyst deactivation
spellingShingle SO2 influence on the K/La2O3 soot combustion catalyst deactivation
Peralta, María Ariela
Soot
Potassium
Lanthanum
So2
Deactivation
Regeneration
title_short SO2 influence on the K/La2O3 soot combustion catalyst deactivation
title_full SO2 influence on the K/La2O3 soot combustion catalyst deactivation
title_fullStr SO2 influence on the K/La2O3 soot combustion catalyst deactivation
title_full_unstemmed SO2 influence on the K/La2O3 soot combustion catalyst deactivation
title_sort SO2 influence on the K/La2O3 soot combustion catalyst deactivation
dc.creator.none.fl_str_mv Peralta, María Ariela
Ulla, Maria Alicia del H.
Querini, Carlos Alberto
author Peralta, María Ariela
author_facet Peralta, María Ariela
Ulla, Maria Alicia del H.
Querini, Carlos Alberto
author_role author
author2 Ulla, Maria Alicia del H.
Querini, Carlos Alberto
author2_role author
author
dc.subject.none.fl_str_mv Soot
Potassium
Lanthanum
So2
Deactivation
Regeneration
topic Soot
Potassium
Lanthanum
So2
Deactivation
Regeneration
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In the present work, K/La2O3 was prepared and tested as a potential catalyst to be used in a diesel engine exhaust. The soot combustion activity was evaluated by TPO, and the NOx - catalyst interaction was studied using a microbalance experiment. The SO2 poisoning process and the regeneration of a poisoned K/La2O3 catalyst were analyzed. The fresh catalyst presented a good soot combustion activity. After being treated with a 1000 ppm SO2 stream, the catalyst was poisoned due to lanthanum sulfate and potassium sulfate formation.  The NOx treatment contributed to the K2(SO4) decomposition at the expense of extra La2(SO4)3 formation and the H2 treatment contributed to the La2(SO4)3 decomposition
Fil: Peralta, María Ariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; 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 ; 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 ; Argentina
description In the present work, K/La2O3 was prepared and tested as a potential catalyst to be used in a diesel engine exhaust. The soot combustion activity was evaluated by TPO, and the NOx - catalyst interaction was studied using a microbalance experiment. The SO2 poisoning process and the regeneration of a poisoned K/La2O3 catalyst were analyzed. The fresh catalyst presented a good soot combustion activity. After being treated with a 1000 ppm SO2 stream, the catalyst was poisoned due to lanthanum sulfate and potassium sulfate formation.  The NOx treatment contributed to the K2(SO4) decomposition at the expense of extra La2(SO4)3 formation and the H2 treatment contributed to the La2(SO4)3 decomposition
publishDate 2008
dc.date.none.fl_str_mv 2008-04
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/11336/65160
Peralta, María Ariela; Ulla, Maria Alicia del H.; Querini, Carlos Alberto; SO2 influence on the K/La2O3 soot combustion catalyst deactivation; Elsevier Science; Catalysis Today; 133-135; 1-4; 4-2008; 461-466
0920-5861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/65160
identifier_str_mv Peralta, María Ariela; Ulla, Maria Alicia del H.; Querini, Carlos Alberto; SO2 influence on the K/La2O3 soot combustion catalyst deactivation; Elsevier Science; Catalysis Today; 133-135; 1-4; 4-2008; 461-466
0920-5861
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.cattod.2007.11.031
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
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
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score 12.891075

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