| abstract |
To ensure a good cold start performance of an exhaust system (20). Also, nitrogen oxide emissions are prevented, especially when using the proposed method for operating the exhaust system (20). The present invention provides a support (1) having an adsorbent material (2) for adsorbing nitrogen oxides in exhaust gas generated in at least one combustion chamber (3) of an internal combustion engine (4). And a method for operating an internal combustion engine (4) with an exhaust system (20) having such a support (1). All combustion chambers (3) of the internal combustion engine (4) have a total combustion chamber volume (5) as a whole, the support (1) has an adsorber volume (6), and the adsorber volume (6) is , Designed to be less than 75%, in particular less than 45%, preferably less than 5% of the combustion chamber volume (5). [Selection] Figure 1 |