Development and Assessment of Regeneration Methods for Commercial Automotive Three-Way Catalysts
Henrik Birgersson
Broschiertes Buch

Development and Assessment of Regeneration Methods for Commercial Automotive Three-Way Catalysts

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Car exhaust catalysts were introduced in the early 1980 s, to limit the release of pollutants such as hydrocarbons, carbon monoxide and nitrogen oxides. These catalysts contain noble metals such as palladium (Pd), platinum (Pt) and rhodium (Rh) and are able to simultaneously abate all three of the above-mentioned pollutants, hence the name three-way catalyst (TWC). The exposure to high temperatures (800-1000 °C) during operation and the presence of additives in gasoline and lubricants will, after a certain time, lower the activity of the TWC. High temperatures reduce the active area by causin...