Patent ID: 6872365
Filing Date: 2005-03-29
Classification: B01D,F01N,F02D,Y02A

Abstract:
1. Exhaust-gas cleaning system for cleaning the exhaust gas which is emitted from a combustion source, in particular a motor vehicle internal-combustion engine, so as to remove at least nitrogen oxides which are contained therein, having an ammonia-generation catalytic converter for generating ammonia using constituents of at least some of the exhaust gas emitted from the combustion source during ammonia-generation operating phases, and a nitrogen oxide reduction catalytic converter, which is connected downstream of the ammonia-generation catalytic converter, for reducing nitrogen oxides which are contained in the exhaust gas emitted from the combustion source using the ammonia generated as the reducing agent, characterized by a plasma generator, which is connected upstream of the ammonia-generation catalytic converter, for generating, using plasma technology, reactive particles, which assist the ammonia-generation reaction in the ammonia-generation catalytic converter, from constituents of the exhaust gas which is fed to the ammonia-generation catalytic converter during the ammonia-generation operating phases.