Effect of the Support in de-NOx HC-SCR Over Transition Metal Catalysts |
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| Authors: | Jorge M. Garcí a-Corté s, Javier Pé rez-Ramí rez, Marí a José Illá n-Gó mez, Freek Kapteijn, Jacob A. Moulijn Concepció n Salinas-Martí nez de Lecea |
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| Affiliation: | (1) Department of Inorganic Chemistry, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain;(2) Industrial Catalysis, DelftChemTech, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands;(3) Department of Inorganic Chemistry, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain |
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| Abstract: | Several catalysts based on transition metals (Cu, Co, Fe) and different supports (ZSM-5, activated carbon, Al2O3) have been tested by Temperature-Programmed Reaction (TPR) experiments for the selective catalytic reduction of NOx with propene in the presence of excess oxygen, simulating lean-burn conditions. The activity order with respect to the metal was Cu Fe>Co for all supports used. ZSM-5 catalysts have a superior behavior over Al2O3, as observed for noble metal catalysts. Application of activated carbon as a support is not practical due to its consumption at the reaction temperatures. The selectivity to N2 of the catalysts was also independent of the support, being higher than 95% in all the cases. |
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| Keywords: | de-NOx HC-SCR transition metals propene |
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