Industrial SCR systems reduce nitrogen oxides (NOx) by injecting a urea-based fluid into the engine exhaust stream and passing it through a catalyst, delivering up to 99% NOx reduction for power generation, generator, and heavy-duty stationary engine applications.

Where They’re Used

• Medium- to large high-horsepower heavy-duty engines

• Power Generation packages

• Applications facing strict emissions requirements

Benefits

• Highly effective at meeting the latest NOx standards

• Efficient performance even under high-load or continuous-duty operation

• Flexible system layouts to fit tighter packaging environments

When SCR is Needed

• To Meet Emissions Regulations: Required when local, national, or permit conditions limit NOx emissions.

• For Prime or Emergency Generators: Especially for engines with long run houses or in regulated areas such as hospitals, airports, or data centers.

• When Integrated with DOC or DPF: SCR controls NOx but does not reduce CO or HC; pairing with a DOC or DPF ensures full compliance.

Typical NOx Reduction

Up to 99%