Simulation of a driving cycle in laboratory:: an approach for testing catalysts 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 reaction conditions are permanently varied due to application of a driving cycle. To overcome this fact, a new laboratory reactor system has been developed which allows the simulation of an inlet catalyst temperature profile of the MVEuro2 driving cycle in the laboratory. The new reactor offers a non ambiguous and inexpensive method for testing catalysts under controlled dynamic conditions. (C) 1998 Elsevier Science S.A. All rights reserved.