SCR System MAN AdBlue®

In the MAN AdBlue SCR system, emissions are controlled in a downstream reduction catalytic converter using an injected aqueous urea solution called AdBlue. In the MAN AdBlue® system, the exhaust is cleaned in a three-stage process: Stage 1: Ammonia (NH3) forms from the injected aqueous urea solution in the AdBlue mixer. Stage 2: The nitrogen oxide level is actually reduced in the reduction catalyser. At the same time, soot particulates are oxidised to become gaseous carbon dioxide. Stage 3: A bl