Patent ID: 6613292
Filing Date: 2003-09-02
Classification: B01D,C01C,F01N,Y02T

Abstract:
Converter for a device for supplying ammonia (NH3) into the exhaust gas flow of a combustion engine, comprising a pressure-tight reaction vessel (2) for generating NH3 by heating a substance splitting off NH3 under the effect of heat, and a heating unit (10) for heating the reaction vessel (2) to operating temperature for generating the NH3, characterized in that the reaction vessel (2) comprises an outlet (4), provided with connection means, and an inlet (3), spaced apart from the outlet (4), also provided with connection means, with which connection means the interior of the reaction vessel (2) is connectable to a filling and withdrawal unit (13) for drawing off a carrier medium disposed in the reaction vessel (2) and for filling the reaction vessel (2) with new substance splitting off NH3 transported by the carrier medium wherein the interior of the reaction vessel (2) is divided by a membrane (6) permeable to NH3 into a lower region (7) containing the carrier medium with the substance splitting off NH3 and an upper region (8) containing the split-off NH3.