Proven Retrofit Solutions for IMO Compliance and Fleet Efficiency
Real-World Applications. Measurable Results. Practical Implementation.
CET Marine helps vessel owners reduce NOx emissions, improve environmental performance, and support compliance with evolving IMO regulations through proven Exhaust Gas Recirculation (EGR) technology.
Our case studies demonstrate how EGR can be successfully applied across different vessel segments—from ferries and cruise ships to container vessels—delivering substantial emissions reductions while minimizing installation costs, downtime, and operational complexity.
Whether your objective is Tier III compliance, improved CII performance, lower operating costs, or extending the commercial life of existing assets, these reference projects provide insight into practical retrofit pathways.
Roll-On/Roll-Off Ferry
78% NOx Reduction + Fuel Saving Potential
A retrofit installation on Sulzer 8L ZA40S main engines demonstrating significant NOx reduction while maintaining operational reliability and improving fuel efficiency through the Fuel Saving Option.
Key Results
- Approx. 78% NOx reduction
- IMO Tier 0+ to Tier II performance
- Approx. 11% fuel savings with FSO
- Improved environmental performance in coastal operations
Cruise Vessel Retrofit
IMO Tier III Compliance Through Retrofit
A successful EGR installation on four Wärtsilä 12V32E main engines, demonstrating how existing vessels can achieve Tier III NOx compliance without engine replacement.
Key Results
- Approx. 80% NOx reduction
- IMO Tier II to Tier III upgrade
- Technical File and EIAPP documentation issued
- No urea or chemical handling required
Container Vessel Retrofit
Comparing LNG, SCR and EGR Compliance Pathways
An economic comparison of common NOx compliance options using a 1,000 TEU feeder vessel as a reference model.
Key Insights
- Up to 90% lower retrofit investment compared with LNG conversion
- Significantly reduced vessel downtime
- Lower installation complexity
- Attractive return-on-investment potential
Need a Fleet Assessment?
Every vessel is different. Our engineering team can evaluate your engines, operating profile, compliance requirements, and available installation windows to determine the most effective emissions-reduction strategy.
Request a Fleet Assessment by email: info@cet-marine.com