Evaluation of Cu-PPHs as active catalysts for the SCR process to control NOx emissions from heavy duty diesel vehicles.
Copper based catalysts supported on mesoporous materials, which were in turn based on a surfactant expanded zirconium phosphate for the formation of silica galleries in the interlayer space, were prepared by the impregnation method. They were then characterised and tested in the selective catalytic reduction of NO with ammonia as active catalysts for the control of the NOx emissions from heavy duty vehicles. Copper catalysts displayed a high catalytic performance, even in the presence of 14% (v/v) of H2O and 100 ppm of SO2. They also displayed improved catalytic behaviour when compared to a CuZSM5 catalyst.
Moreno-Tost
Ramón
R
Departamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al Instituto de Catálisis, CSIC) Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, 29071 Málaga, Spain.
Oliveira
Mona Lisa
ML
Eliche-Quesada
Dolores
D
Jiménez-Jiménez
José
J
Jiménez-López
Antonio
A
Rodríguez-Castellón
Enrique
E
D000327:Adsorption; D000393:Air Pollutants / Q000032:analysis / Q000737:chemistry; D000641:Ammonia / Q000737:chemistry; D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D005742:Gasoline; D009589:Nitrogen Oxides / Q000032:analysis* / Q000737:chemistry*; D010084:Oxidation-Reduction; D010710:Phosphates / Q000737:chemistry*; D016062:Porosity; D013379:Substrate Specificity; D013458:Sulfur Dioxide / Q000737:chemistry; D013696:Temperature; D001335:Vehicle Emissions / Q000032:analysis*
D000393:Air Pollutants; D005742:Gasoline; D009589:Nitrogen Oxides; D010710:Phosphates; D001335:Vehicle Emissions; D013458:Sulfur Dioxide; D000641:Ammonia; D003300:Copper