Louisiana Cat System / Package
Cat SCR Aftertreatment
Fuel-efficiency-optimized Cat engine with SCR aftertreatment for EPA Tier 4 and IMO III compliance.
Description
Caterpillar Marine combines a fuel-efficiency-optimized engine with a Selective Catalytic Reduction (SCR) aftertreatment system to meet EPA Tier 4 and IMO III emissions standards. A dosing cabinet mixes compressed air and urea from an onboard urea tank. The mixture is injected into the exhaust stream in the SCR module, where ammonia reacts over the catalyst to reduce NOx.
Key features
- Fuel-efficiency-optimized engine with SCR aftertreatment
- Dosing cabinet mixing compressed air and urea
- Urea injection into the exhaust stream in the SCR module
- Catalyst-based NOx reduction
Applications
- Commercial marine vessels subject to EPA Tier 4 and IMO III
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