In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies

Autores
Serra, Ramiro Marcelo; Vecchietti, María Julia; Miro, Eduardo Ernesto; Boix, Alicia Viviana
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work, the addition of Fe2O3 to InH-zeolites (ZSM5 and mordenite) is investigated for the selective catalytic reduction of NOx with both methane and butane as reducing agents. When Fe is added to InHMOR and methane is used, the NOx to N2 conversion increases from 25% to 55% at 20,000 h-1 and 500 8C. An increase is also observed when butane is employed but to a lower extent. The role of Fe could be ascribed to an improvement of the NO to NO2 reaction rate. The presence of iron oxides also improves durability in the presence of 2% water. The catalyst InFeHMOR undergoes a fast initial inhibition after which a reasonable NOx conversion (25%) remains constant during 125 h. TPR, XRD and LRS characterizations indicate that Fe2O3 and Fe3O4 are the iron species present, while InO+ at exchange sites and small amounts of In2O3 are also present. The kinetic plots for the NOx selective catalytic reduction (SCR) with methane with the InFeHMOR catalyst show fractional orders for the NO concentration and ca. first order for methane.
Fil: Serra, Ramiro Marcelo. 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: Vecchietti, María Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Miro, Eduardo Ernesto. 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: Boix, Alicia Viviana. 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
Nox Scr
In-Fe Zeolites
Deactivation
Kinetics
Characterization
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:11336/24824
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/24824
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studiesSerra, Ramiro MarceloVecchietti, María JuliaMiro, Eduardo ErnestoBoix, Alicia VivianaNox ScrIn-Fe ZeolitesDeactivationKineticsCharacterizationhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2In this work, the addition of Fe2O3 to InH-zeolites (ZSM5 and mordenite) is investigated for the selective catalytic reduction of NOx with both methane and butane as reducing agents. When Fe is added to InHMOR and methane is used, the NOx to N2 conversion increases from 25% to 55% at 20,000 h-1 and 500 8C. An increase is also observed when butane is employed but to a lower extent. The role of Fe could be ascribed to an improvement of the NO to NO2 reaction rate. The presence of iron oxides also improves durability in the presence of 2% water. The catalyst InFeHMOR undergoes a fast initial inhibition after which a reasonable NOx conversion (25%) remains constant during 125 h. TPR, XRD and LRS characterizations indicate that Fe2O3 and Fe3O4 are the iron species present, while InO+ at exchange sites and small amounts of In2O3 are also present. The kinetic plots for the NOx selective catalytic reduction (SCR) with methane with the InFeHMOR catalyst show fractional orders for the NO concentration and ca. first order for methane.Fil: Serra, Ramiro Marcelo. 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: Vecchietti, María Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Miro, Eduardo Ernesto. 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: Boix, Alicia Viviana. 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 Science2008-12info: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/11336/24824Serra, Ramiro Marcelo; Vecchietti, María Julia; Miro, Eduardo Ernesto; Boix, Alicia Viviana; In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies; Elsevier Science; Catalysis Today; 133-135; 12-2008; 480-4860920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2007.11.039info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S092058610700795Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:00Zoai:ri.conicet.gov.ar:11336/24824instacron: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:34982025-09-03 10:01:00.856CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies
title In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies
spellingShingle In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies
Serra, Ramiro Marcelo
Nox Scr
In-Fe Zeolites
Deactivation
Kinetics
Characterization
title_short In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies
title_full In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies
title_fullStr In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies
title_full_unstemmed In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies
title_sort In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies
dc.creator.none.fl_str_mv Serra, Ramiro Marcelo
Vecchietti, María Julia
Miro, Eduardo Ernesto
Boix, Alicia Viviana
author Serra, Ramiro Marcelo
author_facet Serra, Ramiro Marcelo
Vecchietti, María Julia
Miro, Eduardo Ernesto
Boix, Alicia Viviana
author_role author
author2 Vecchietti, María Julia
Miro, Eduardo Ernesto
Boix, Alicia Viviana
author2_role author
author
author
dc.subject.none.fl_str_mv Nox Scr
In-Fe Zeolites
Deactivation
Kinetics
Characterization
topic Nox Scr
In-Fe Zeolites
Deactivation
Kinetics
Characterization
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 this work, the addition of Fe2O3 to InH-zeolites (ZSM5 and mordenite) is investigated for the selective catalytic reduction of NOx with both methane and butane as reducing agents. When Fe is added to InHMOR and methane is used, the NOx to N2 conversion increases from 25% to 55% at 20,000 h-1 and 500 8C. An increase is also observed when butane is employed but to a lower extent. The role of Fe could be ascribed to an improvement of the NO to NO2 reaction rate. The presence of iron oxides also improves durability in the presence of 2% water. The catalyst InFeHMOR undergoes a fast initial inhibition after which a reasonable NOx conversion (25%) remains constant during 125 h. TPR, XRD and LRS characterizations indicate that Fe2O3 and Fe3O4 are the iron species present, while InO+ at exchange sites and small amounts of In2O3 are also present. The kinetic plots for the NOx selective catalytic reduction (SCR) with methane with the InFeHMOR catalyst show fractional orders for the NO concentration and ca. first order for methane.
Fil: Serra, Ramiro Marcelo. 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: Vecchietti, María Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Miro, Eduardo Ernesto. 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: Boix, Alicia Viviana. 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 In this work, the addition of Fe2O3 to InH-zeolites (ZSM5 and mordenite) is investigated for the selective catalytic reduction of NOx with both methane and butane as reducing agents. When Fe is added to InHMOR and methane is used, the NOx to N2 conversion increases from 25% to 55% at 20,000 h-1 and 500 8C. An increase is also observed when butane is employed but to a lower extent. The role of Fe could be ascribed to an improvement of the NO to NO2 reaction rate. The presence of iron oxides also improves durability in the presence of 2% water. The catalyst InFeHMOR undergoes a fast initial inhibition after which a reasonable NOx conversion (25%) remains constant during 125 h. TPR, XRD and LRS characterizations indicate that Fe2O3 and Fe3O4 are the iron species present, while InO+ at exchange sites and small amounts of In2O3 are also present. The kinetic plots for the NOx selective catalytic reduction (SCR) with methane with the InFeHMOR catalyst show fractional orders for the NO concentration and ca. first order for methane.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
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/11336/24824
Serra, Ramiro Marcelo; Vecchietti, María Julia; Miro, Eduardo Ernesto; Boix, Alicia Viviana; In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies; Elsevier Science; Catalysis Today; 133-135; 12-2008; 480-486
0920-5861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24824
identifier_str_mv Serra, Ramiro Marcelo; Vecchietti, María Julia; Miro, Eduardo Ernesto; Boix, Alicia Viviana; In,Fe-Zeolites: active and stable catalysts for the SCR of NOx. Kinetics, characterization and deactivation studies; Elsevier Science; Catalysis Today; 133-135; 12-2008; 480-486
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.2007.11.039
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S092058610700795X
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
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score 13.13397

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