Reliable NOâ‚“ reduction for marine applications
Umicore’s DNX Marine catalyst is designed for selective catalytic reduction (SCR) installations in marine settings, where reliable NOₓ reduction is required under medium‑dust operating conditions. Based on a fiber‑reinforced vanadium–tungsten–titania catalyst, the design is tailored to support stable performance across varying engine conditions.
The catalyst composition can be optimized by adjusting its active constituents to match specific engine requirements. This flexibility supports efficient operation across different marine applications and operating profiles.
The fiber‑reinforced design provides enhanced resistance to vibration, a key requirement for marine engines. Supported by extensive expertise and testing, including shaker testing, Umicore’s DNX Marine catalyst maintains performance over time, helping ensure reliable operation in demanding environments.
Physical properties
| Wall thickness | 0.4 mm |
| Hydraulic diameter | 3.4 - 4.3 mm |
| Cell pitch | 4.1 – 5.1 mm |
| Plate pitch | 4.1 – 5.0 mm |
| Cell density | 26 - 39 CPSI |
| Specific area | 741 - 885 m2/m3 |
| Open area | 76 - 80 % |
| Leading edge reinforcement | Yes |