Reducao catalítica seletiva de óxidos de nitrogenio sobre hematita contendo cobre

Authors
Sousa Ferreira, Hadma; Oliveira, Soraia Jesus; Rangel, Maria do Carmo; Urquieta González, Ernesto A.; Martins, Leandro; Garcia Fierro, Jose Luis; Marchetti, Sergio Gustavo
Publication Year
2007
Language
Portuguese
Format
article
Status
Published version
Description
The activity of copper-doped hematite in the SCR with propane, in the presence of oxygen, was evaluated in this work. It was found that copper sulfate led to the production of solids with different specific surface areas depending on the amount of copper. The sulfur and copper species were mainly located on the surface. The copper-containing catalysts were more active in the reduction of nitrogen oxides and less active in the propane oxidation as compared to pure hematite. This behavior was assigned to an association of both sulfur and copper species to produce new sites active for NO reduction.
Fil: Sousa Ferreira, Hadma. Universidade Federal da Bahia. Instituto de Química; Brasil
Fil: Oliveira, Soraia Jesus. Universidade Federal da Bahia. Instituto de Química; Brasil
Fil: Rangel, Maria do Carmo. Universidade Federal da Bahia. Instituto de Química; Brasil
Fil: Urquieta González, Ernesto A.. Universidade Federal de São Carlos. Departamento de Engenharia Química; Brasil
Fil: Martins, Leandro. Universidade Federal de São Carlos. Departamento de Engenharia Química; Brasil
Fil: Garcia Fierro, Jose Luis. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España
Fil: Marchetti, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Subject
hematite
copper
nitrogen oxides
Ingeniería Química
Ingeniería Química
INGENIERÍAS Y TECNOLOGÍAS
Access level
Open access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/17362