Excellent Low-Temperature Activity and Copper-Exchanged Zeolite SCR Catalyst for IMO Tier III Marine Engine DeNOx Compliance
High-Efficiency Nitrogen Oxide Mitigation: The Cu-Zeolite SCR Solution
In the evolving landscape of global emission standards, Cu-Zeolite Selective Catalytic Reduction (SCR) technology stands as the gold standard for Nitrogen Oxide (NOx) control in mobile sources. As heavy-duty engines and maritime vessels face stricter compliance mandates, the integration of advanced catalytic materials is no longer optional—it is a necessity for sustainable operation.
Applications and Versatility
The GRACE Cu-SCR catalyst is engineered specifically for high-performance mobile environments:
Road Transport: Heavy-duty trucks, logistics vehicles, and urban buses requiring compliance with Euro VI or China VI standards.
Non-Road Machinery: Excavators, agricultural tractors, and mining equipment operating under variable loads.
Marine Power: Ocean-going vessels and inland shipping complying with IMO Tier III regulations.
Technical Advantages
The GRACE series offers distinct superiority over traditional catalysts:
Superior Thermal Stability: Maintains structural integrity during DPF active regeneration cycles (exceeding 650°C).
Wide Temperature Window: Exceptional activity starting as low as 150°C, ensuring effective treatment during cold starts and low-load idling.
High N2 Selectivity: Minimizes the formation of N2O (Nitrous Oxide) bypass gas.
Technical Specifications
| Parameter | Specification |
| Active Component | Copper-Exchanged Zeolite (Cu-CHA/SSZ-13) |
| Substrate Material | Cordierite Honeycomb / Metallic Carrier |
| Cell Density | 200 / 300 / 400 / 600 CPSI |
| Operating Temp | 150°C – 600°C |
| NOx Removal Rate | >=95% |
| Ammonia Slip | < 10 ppm |
Manufacturing Process
Substrate Preparation: High-precision coating of ceramic or metallic honeycombs.
Slurry Synthesis: Precise ion exchange of copper into the zeolite framework for maximum active sites.
Precision Coating: Advanced "washcoat" application to ensure uniform distribution and low pressure drop.
Calcination: High-temperature curing to anchor the catalyst and enhance durability.
Usage Instructions & Maintenance
Installation: Ensure the gas flow direction matches the arrow on the housing.
Urea Injection: Calibrate the AdBlue/DEF dosing system to prevent "Ammonia Slip" or crystallization.
Fuel Quality: Use ultra-low sulfur diesel (ULSD) to prevent sulfur poisoning of the active copper sites.
After-Sales & FAQ
Q: Can Cu-SCR replace Vanadium-based catalysts directly?
A: Yes, it offers better low-temperature performance and is environmentally safer for mobile applications.
Q: What is the lifespan of the GRACE Cu-SCR?
A: Designed for a service life of 500,000 km to 800,000 km (or 10,000+ hours) depending on engine maintenance.
Our Commitment: We provide 24/7 technical support, remote emission monitoring consultation, and a comprehensive warranty against material defects.
Keywords: Cu-Zeolite SCR, Nitrogen Oxide Reduction, Diesel Emission Control, Mobile Source DeNOx, Copper Zeolite Catalyst, IMO Tier III Compliance.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.