14
SCR Design Considerations
lEngine model, power
lFuel
lExhaust characteristics
–Flow
rate
–Temperature
–O2, H2O
concentration
–Untreated
NOx emissions
lRequired NOx reduction
lAllowable pressure drop
lAchievable Performance
–>95%
DeNOx
–<5
ppm NH3 slip
–<0.05
g/bhp-hr outlet NOx
–Low
pressure drop
–Wide operating temperature range