Emission Control Systems

SCR (Selective Catalytic Reduction)

How does SCR work?

Selective Catalytic Reduction works off the basic principle of the Catalytic Reduction we spoke about earlier.

The catalyst in this situation is the copper zeolite filter and the base chemical found in AdBlue, Ammonia.

AdBlue Water + Ammonia

Enters Catalyst Reacts with NOx Converts to Water

Injected Chemical split

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