Reduction of NO by Propene Over Pt, Pd and Rh-Based ZSM-5 Under Lean-Burn Conditions |
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| Authors: | Javier Pérez-Ramírez Jorge M García-Cortés María José Illán-Gómez Freek Kapteijn Jacob A Moulijn and Concepción Salinas-Martínez de Lecea |
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| Institution: | (1) Industrial Catalysis, DelftChemTech, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands;(2) Department of Inorganic Chemistry, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain |
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| Abstract: | Selective catalytic reduction of NO by propene has been investigated over noble metal (Pt, Pd, Rh)-based ZSM-5 catalysts. These samples were tested in a gas mixture system in the presence of excess oxygen, simulating lean-burn exhaust gases. The sequence in activity for NO reduction was Pt > Rh  Pd. Regarding the selectivity of the reaction to N2, an opposite trend was observed: Rh > Pd Pt. The catalytic systems have presented stable operation under isothermal conditions during time-on-stream experiments. |
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| Keywords: | de-NOx HC-SCR noble metal ZSM-5 |
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