Hydrocarbon Poisoning SCR Catalyst Strategy definition

Hydrocarbon Poisoning SCR Catalyst Strategy means an AECD in the Master Series Calibration that models the amount of hydrocarbons stored on the SCR catalyst and that diminishes the ability to store NH3 on the SCR catalyst so that the SCR efficiency is reduced, and therefore DEF dosing amount will be reduced within ammonia storage mode. The adjusted SCR efficiency was not employed during emissions testing. If the amount of hydrocarbons stored on the SCR catalyst exceeds a calibrated value, the Adaptive Dosing to Prevent Deposits AECD will activate.
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