Effect of phosphorus poisoning on catalytic activity of diesel exhaust gas catalyst components containing oxide and Pt |
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| Authors: | Kröger V Hietikko M Angove D French D Lassi U Suopanki A Laitinen R Keiski R L |
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| Affiliation: | (1) Department of Process and Environmental Engineering, University of Oulu, P.O. Box 4300, FIN-90014 University of Oulu, Finland;(2) Department of Chemistry, University of Oulu, P.O. Box 3000, FIN-90014 University of Oulu, Finland;(3) CSIRO Energy Technology, PMB 7, Bangor, NSW, 2234, Australia;(4) Department of Technology, Central Ostrobothnia University of Applied Sciences, Talonpojankatu 2, FIN-67100, Kokkola, Finland;(5) Ecocat Oy, Typpitie 1, FIN-90650 Oulu, Finland |
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| Abstract: | Effects of phosphorus poisoning on the activity of powdered exhaust gas catalyst components containing different oxides and
platinum were studied. The decrease in the catalytic activity was associated with phosphorus compounds formed with the catalyst
components. The poisoned samples were studied using XRD and FTIR-ATR techniques. The same compounds, phosphates of cerium,
zirconium, aluminium and titanium, have also been detected in vehicle aged diesel catalyst converters. |
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| Keywords: | phosphorus poisoning diesel catalyst platinum |
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