Influence of OSC Material on the Behaviour of Metallic Pd Catalysts in C2H4 and CO Oxidation as Well as in NO Reduction |
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| Authors: | T. Kolli, K. Rahkamaa-Tolonen, U. Lassi, A. Savimä ki R.L. Keiski |
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| Affiliation: | (1) Department of Process and Environmental Engineering, University of Oulu, P.O. Box 4300, FIN-90014, Finland;(2) Ecocat Oy, Catalyst Research, P.O. Box 171, FIN-90101 Oulu, Finland |
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| Abstract: | The interaction of CO, C2H4, O2, and NO reaction gas compounds over the metallic Pd/Al2O3 and Pd/OSC/Al2O3 monoliths was investigated in order to understand the behaviour of OSC material in the oxidation and reduction reactions. FT-IR gas analyser was used for the analysis of the product gas composition. Several activity experiments carried out with dissimilar feedstreams have revealed that the CexZr1–xO2 mixed oxide is an oxygen storage compound, which promotes CO and C2H4 oxidation as well as NO reduction in particular at low temperatures. |
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| Keywords: | ceria– zirconia DeNOx ethene nitrogen oxides OSC palladium |
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