Zirconia-Supported Copper and KNO<SUB>3</SUB> Catalysts for Diesel Soot Combustion : Deactivation by Hydrotreatment and SO<SUB>2</SUB>

In this study, the sulfur tolerance and hydrothermal stability of Cu-KNO3/ZrO2 catalysts in catalytic diesel soot oxidation were investigated. Supported alkaline nitrate catalysts have shown excellent activity for soot oxidation in the presence of O2 or NO/O2. High-temperature water vapor treatments...

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Autores principales: Mosconi, Sandra Mariela, Ruiz, Maria Lucía, Leguizamón Aparicio, María Silvia del Valle, Ponzi, Marta Isabel, Lick, Ileana Daniela, Ponzi, Esther Natalia
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2014
Materias:
Ingeniería Química
Diesel soot
Combustion
Hydrothermal stability
SO2
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/104726
http://hdl.handle.net/11336/5883
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-104726
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
Diesel soot
Combustion
Hydrothermal stability
SO2
spellingShingle Ingeniería Química
Diesel soot
Combustion
Hydrothermal stability
SO2
Mosconi, Sandra Mariela
Ruiz, Maria Lucía
Leguizamón Aparicio, María Silvia del Valle
Ponzi, Marta Isabel
Lick, Ileana Daniela
Ponzi, Esther Natalia
Zirconia-Supported Copper and KNO<SUB>3</SUB> Catalysts for Diesel Soot Combustion : Deactivation by Hydrotreatment and SO<SUB>2</SUB>
topic_facet Ingeniería Química
Diesel soot
Combustion
Hydrothermal stability
SO2
description In this study, the sulfur tolerance and hydrothermal stability of Cu-KNO3/ZrO2 catalysts in catalytic diesel soot oxidation were investigated. Supported alkaline nitrate catalysts have shown excellent activity for soot oxidation in the presence of O2 or NO/O2. High-temperature water vapor treatments do not affect the catalytic activity, suggesting a good hydrothermal stability of the catalysts. Treatments performed at high SO2 concentration lead to a partial deactivation of the catalysts for the combustion reaction in the presence of O2. The presence of copper improves the sulfur tolerance of the KNO3/ZrO2 catalyst for the combustion of soot in the presence of NOx. NO/O2 present in the feed flow of the reactor can regenerate in situ nitrate anions that provide the redox cycles required for the reaction.
format Articulo
Preprint
author Mosconi, Sandra Mariela
Ruiz, Maria Lucía
Leguizamón Aparicio, María Silvia del Valle
Ponzi, Marta Isabel
Lick, Ileana Daniela
Ponzi, Esther Natalia
author_facet Mosconi, Sandra Mariela
Ruiz, Maria Lucía
Leguizamón Aparicio, María Silvia del Valle
Ponzi, Marta Isabel
Lick, Ileana Daniela
Ponzi, Esther Natalia
author_sort Mosconi, Sandra Mariela
title Zirconia-Supported Copper and KNO<SUB>3</SUB> Catalysts for Diesel Soot Combustion : Deactivation by Hydrotreatment and SO<SUB>2</SUB>
title_short Zirconia-Supported Copper and KNO<SUB>3</SUB> Catalysts for Diesel Soot Combustion : Deactivation by Hydrotreatment and SO<SUB>2</SUB>
title_full Zirconia-Supported Copper and KNO<SUB>3</SUB> Catalysts for Diesel Soot Combustion : Deactivation by Hydrotreatment and SO<SUB>2</SUB>
title_fullStr Zirconia-Supported Copper and KNO<SUB>3</SUB> Catalysts for Diesel Soot Combustion : Deactivation by Hydrotreatment and SO<SUB>2</SUB>
title_full_unstemmed Zirconia-Supported Copper and KNO<SUB>3</SUB> Catalysts for Diesel Soot Combustion : Deactivation by Hydrotreatment and SO<SUB>2</SUB>
title_sort zirconia-supported copper and kno<sub>3</sub> catalysts for diesel soot combustion : deactivation by hydrotreatment and so<sub>2</sub>
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/104726
http://hdl.handle.net/11336/5883
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