SIMULATION OF A DRIVING CYCLE IN LABORATORY - AN APPROACH FOR TESTINGCATALYSTS SUITABLE FOR AUTOMOTIVE EXHAUST NOX ABATEMENT UNDER LEAN CONDITIONS

Catalyst testing for the removal of NOx under lean conditions suffers from a lack of detailed information regarding catalytic activity if re action conditions are permanently varied due to application of a drivi ng cycle. To overcome this fact, a new laboratory reactor system has b een developed which allows the simulation of an inlet catalyst tempera ture profile of the MVEuro2 driving cycle in the laboratory. The new r eactor offers a non ambiguous and inexpensive method for testing catal ysts under controlled dynamic conditions. (C) 1998 Elsevier Science S. A. All rights reserved.