Getting
the most out of your expensive and perishable catalyst
asset is now more important than ever. Gone are the days
when SCR systems lasted beyond guarantee with minimal monitoring
and maintenance. Today’s SCR system are less conservative
and less robust than in the past. Increased market competition
and performance requirements have both reduced the total
effective system activity of catalyst systems in the new
installed base.
Unique Challenges to SCR in
Gas Turbine Applications
High NOx Conversion Requirements
Thermal Cycling in Peaking Units
High Exhaust Gas Velocity Flow
Flow Maldistribution
Short Startup to Achieve Compliance
High and Low Temperature Applications
Low Ammonia Slip Permit Limits
Need for Minimum Pressure Drop
Low NOx Emissions Require
High Performance SCR Systems
Recent advances in combustion
and emission control technologies have led to record low
stack NOx and ammonia slip permit limits that necessitate
high NOx conversion requirements and near-ideal operating
conditions. Along with any high performance technology comes
an increased need for monitoring and maintenance.
