CINDECA   05422
CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
artículos
Título:
REDUÇÃO CATALITICA SELETIVA DE ÓXIDOS DE NITROGÊNIO SOBRE HEMATITA CONTENDO COBRE
Autor/es:
H. SOUSA FERREIRA, S. J. OLIVEIRA, M. DO CARMO RANGEL, E. A. URQUIETA-GONZÁLEZ, L. MARTINS, J. L. GARCIA FIERRO E S. G. MARCHETTI.
Revista:
QUíMICA NOVA
Editorial:
The Scientific Electronic Library Online - SciELO
Referencias:
Año: 2007 vol. 30 p. 611 - 611
ISSN:
0100-4042
Resumen:
THE SELECTIVE CATALYTIC REDUCTION OF NO OVER COPPER-CONTAINING HEMATITE. 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.
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