SCR / SNCR Performance

SCR Performance Testing

CleanAir provides both utility boiler owners and selective catalytic reduction (SCR) system vendors testing to characterize SCR system performance.   As part of a typical SCR performance test program, the NOx removal efficiency, inlet and outlet NOx distribution, inlet temperature and velocity distribution, ammonia (NH3) slip, SO2 to SO3 conversion, SCR and catalyst pressure drop are determined to demonstrate compliance with SCR performance guarantees.

SNCR Performance Testing

CleanAir offers selective non-catalytic reduction (SNCR) performance evaluation test programs that are generally directed toward establishing NOx removal efficiency, ammonia slip, airheater pressure drop, and furnace exit gas temperature profiles.

SCR Optimization

CleanAir has worked with both utility boiler owners and selective catalytic reduction (SCR) system vendors on several SCR installation projects to characterize SCR system performance. As part of a typical SCR performance test program, the NOx removal efficiency, inlet and outlet NOx distribution, inlet temperature and velocity distribution, ammonia (NH3) slip, SO2 to SO3 conversion, SCR and catalyst pressure drop are determined to demonstrate compliance with SCR performance guarantees.

AIG Tuning

A sound selective catalytic reduction (SCR) catalyst management program as well as the successful operation of an SCR system will include at a minimum annual ammonia injection grid (AIG) tuning to optimize the NH3:NOx distribution over the cross section of the catalyst bed, minimize ammonia slip and to reduce O&M costs.

CleanAir’s team of experienced engineers using our proprietary flue gas profiling system called the Multi-Point Automated Sampling System (MASS) has provided AIG tuning support to plant operators, engineers and catalyst management providers.

Related Services:

Air Heater Efficiency
Boiler Testing
Control Technology Analysis
Multi-point Automated Sampling System

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