Regeneration of Catalytic Diesel Particulate Filters

This paper will discuss a number of different matters relating to the regeneration of catalyst coated diesel particulate filters such as: impact of the catalyst on the soot ignition temperature, soot combustion rate and NO₂ generation.

If catalytic coatings prove to be sufficient compared to certain fuel additives they could be used in second generation diesel particulate aftertreatment systems. Examples will be shown on how catalytic diesel particulate filters (“DPF”) can operate on a common rail passenger car diesel engine. Furthermore, an outlook is given on the future combination of particulate - and NO_x - emission control for diesel passenger cars.