Patent ID: 6363716
Filing Date: 2002-04-02
Classification: B01D,F01N,F02M,Y02A,Y02C,Y02T

Abstract:
A system for converting noxious emissions in the exhaust stream produced by an internal combustion engine operating at lean air/fuel ratios into non polluting emissions comprising:a) reducing means for converting a portion of liquid engine fuel substantially into a gaseous reductant, said reducing means including a non-thermal plasma reaction chamber generating a non-thermal plasma through which said fuel passes; b) means to introduce said gaseous reductant into said exhaust stream at a rate correlated to the NOX emissions produced by said engine; c) a reducing catalyst downstream of said introduction means for converting said NOX to N2; and, d) an oxidation catalyst downstream of said plasma reaction chamber and upstream of said introducing means and said reducing catalyst and means to introduce oxygen into the gaseous mixture leaving said plasma reaction chamber whereby an oxygenated reactive gas mixture is produced.