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Catalytic after-treatment of the exhaust gas breaks down harmful NOx into harmless nitrogen and water.
A reducing agent is injected into the exhaust gas flow upstream from a catalytic reactor. Together with the catalyst, this agent causes the breakdown of the NOx.
With SCR, the engine can operate at partial and full load and maximum efficiency. With this technology a NOx reduction ratio of up to 97% is achievable.
MAN has developed a standardized portfolio of SCR systems together with leading catalyst developers and producers, respecting the experience of several successful projects.