Apparatus for removing carbon particles from an exhaust gas stream of internal combustion engines

摘要

An apparatus for removing carbon particles from exhaust gas of an internal combustion engine by oxidation of carbon particles with nitrogen dioxide is provided and comprises a module through which exhaust gas flows. The module is an open, self-regenerating module in which are disposed open-pored, metallic expanded material components, including at least two first noble-metal-coated components that increase nitrogen dioxide concentration in the exhaust gas for the oxidation of carbon particles. The first components are disposed by themselves in the module, or in an alternating arrangement with uncoated and/or coated second metallic expanded material components. The first components are configured such that nitric oxide that results thereon during the oxidation of the carbon particles again reacts to form nitrogen dioxide and is thus reused multiple times.