Selective Catalytic Reduction (SCR)
GPTKB entity
Statements (33)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
emissions control technology
|
| gptkbp:alternativeTo |
gptkb:Exhaust_Gas_Recirculation_(EGR)
Lean NOx Trap (LNT) |
| gptkbp:appliesTo |
power plants
diesel engines industrial boilers |
| gptkbp:byproduct |
ammonia slip
|
| gptkbp:canBeRetrofitted |
existing diesel engines
|
| gptkbp:developedBy |
1970s
|
| https://www.w3.org/2000/01/rdf-schema#label |
Selective Catalytic Reduction (SCR)
|
| gptkbp:marketedAs |
AdBlue (for urea solution in Europe)
DEF (Diesel Exhaust Fluid in North America) |
| gptkbp:monitors |
NOx sensors
ammonia sensors |
| gptkbp:operatesAtTemperature |
200°C to 450°C
|
| gptkbp:reactionProduct |
water (H2O)
nitrogen (N2) |
| gptkbp:reduces |
NOx emissions by up to 90%
|
| gptkbp:regulates |
gptkb:Environmental_Protection_Agency_(EPA)
Euro VI emission standards US Tier 4 emission standards |
| gptkbp:requires |
periodic maintenance
control system for reagent dosing injection of reagent into exhaust stream |
| gptkbp:usedFor |
reducing nitrogen oxides (NOx) emissions
|
| gptkbp:usesCatalyst |
titanium dioxide (TiO2)
tungsten trioxide (WO3) vanadium pentoxide (V2O5) |
| gptkbp:usesReagent |
gptkb:urea
gptkb:aqueous_ammonia ammonia |
| gptkbp:bfsParent |
gptkb:Volvo_D13
|
| gptkbp:bfsLayer |
8
|