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Effect of the Support in de-NOx HC-SCR Over Transition Metal Catalysts

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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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Authors and Affiliations

  1. Department of Inorganic Chemistry, University of Alicante, P.O. Box 99, E-03080, Alicante, Spain

    Jorge M. García-Cortés & María José Illán-Gómez

  2. Industrial Catalysis, DelftChemTech, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands

    Javier Pérez-Ramírez, Freek Kapteijn & Jacob A. Moulijn

  3. Department of Inorganic Chemistry, University of Alicante, P.O. Box 99, E-03080, Alicante, Spain

    Concepción Salinas-Martínez de Lecea

Authors
  1. Jorge M. García-Cortés
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  2. Javier Pérez-Ramírez
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  3. María José Illán-Gómez
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  4. Freek Kapteijn
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  5. Jacob A. Moulijn
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  6. Concepción Salinas-Martínez de Lecea
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García-Cortés, J.M., Pérez-Ramírez, J., Illán-Gómez, M.J. et al. Effect of the Support in de-NOx HC-SCR Over Transition Metal Catalysts. Reaction Kinetics and Catalysis Letters 70, 199–206 (2000). https://doi.org/10.1023/A:1010347726288

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  • DOI: https://doi.org/10.1023/A:1010347726288

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