| 摘要 |
A device for the additive-free, catalytically induced oxidation of solid carbon particles and the decomposition of chemical compounds, which are generated by diesel engines and other combustion carbon particles. A device (100) for burning exhaust gas particles, comprising a converter chamber (50), in which at least one or a large number of porous structure catalyst carrier matrix profiles (120) are accommodated. The catalyst carrier matrix profiles are mounted in the converter chamber, wherein the converter chamber is provided with compartments, so that the space between the internal diameter of the catalyst profiles is connected to an inlet connection of the converter chamber, and the space around the external diameter of the catalyst profiles is connected to an outlet connection into the catalyst chamber. The profiles are mounted at the star-shaped gas passages and the compartments, so that gas particles can reach the outlet connection from the inlet connection only by passing through the walls of the structure of the porous profiles. To induce the activities of an additive-free catalytic oxidation at low exhaust gas temperatures, it may be advantageous to provide at least a third opening at the inlet of the device, through which liquid or gaseous media, e.g., NO2, O3 or H2O or auxiliary means are positioned in front of the porous structures. The porous structures are made of a catalytically active material in order to catalytically reduce the solid soot particles and chemical compounds in a exhaust gas stream, which pass through the device for burning exhaust gas particles, without additives or admixtures. The catalytically active material used is selected such that it has catalytic action at temperatures below 400° C., preferably below 350° C. and especially below 300° C. The low-temperature regeneration below 250° C. by the injection of H2O is preferred.
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