Exhaust gas cleaning system for selective catalytic reduction of nitrogen oxide, comprises catalyst with catalytically active components for selective catalytic reduction, and exhaust gas of internal combustion engine flows through system

摘要

#CMT# #/CMT# The exhaust gas cleaning system (1) comprises a catalyst (4) with catalytically active components for selective catalytic reduction (SCR). Exhaust gas of an internal combustion engine flows through the system. The exhaust gas is provided before the selective catalytic reduction catalyst of a nitrogen oxide storage catalytic converter (3), where a dosing device (6) supplies a reducing agent for nitrogen oxide to the exhaust gas. A shifting bypass is arranged in the exhaust line, such that the exhaust line is partially guided to the nitrogen oxide storage catalytic converter. #CMT# : #/CMT# An independent claim is included for a method for removing nitrogen oxide from exhaust gas of an internal combustion engine. #CMT#USE : #/CMT# Exhaust gas cleaning system for selective catalytic reduction of nitrogen oxide. #CMT#ADVANTAGE : #/CMT# The exhaust gas cleaning system comprises a catalyst with catalytically active components for selective catalytic reduction, and exhaust gas of an internal combustion engine flows through the system, thus ensures a reliable and highly effective removal of nitrogen oxide. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of an exhaust gas cleaning system. 1 : Exhaust gas cleaning system 3 : Nitrogen oxide storage catalytic converter 4 : Catalyst 5 : Oxidation catalyst 6 : Dosing device.