Patent ID: 9657619
Date: 2017-05-23
CPC Classifications: F01N

Claim:
1. An exhaust gas aftertreatment apparatus for an internal combustion engine, said exhaust gas aftertreatment apparatus comprising: an intake for exhaust gas; a thermoreactor including a thermal reaction zone, a first storage mass, and a second storage mass, said thermoreactor being configured to perform a partial oxidation of methane to form carbon monoxide; a catalytic reaction zone connected downstream of said thermoreactor in a flow direction of the exhaust gas through said exhaust gas aftertreatment apparatus, said catalytic reaction zone being configured to break down by catalytic oxidation the carbon monoxide formed by said thermoreactor; and a switching-over mechanism configured to switch a direction of flow of the exhaust gas through said exhaust gas aftertreatment apparatus between a first direction through the first storage mass, the thermal reaction zone, and then the second storage mass, and a second direction through the second storage mass, the thermal reaction zone, and then the first storage mass.