SCR DeNOx catalyst DNX-series


The DNX-HD catalyst is a fiber reinforced Vanadium-Tungsten-Titania catalyst. The catalyst is available with a 0.8 mm wall.

Application areas:

The DNX-HD catalyst is suitable for operation in a high-dust environment, and is typically used in SCR installations on coal-fired boilers burning coal with high dust content. The cell density (CPSI) is selected to accommodate the dust content in the flue gas.

Features and Values:

The low weight of the DNX® catalyst results in a very low SO2-oxidation, which is further optimized by balancing the vanadium content in the catalyst versus the operating temperature. The tri-modal pore structure offers a high poison resistance and a low ABS dew point. Due to the fiber-reinforced carrier it has a high mechanical durability and is very thermal shock resistant which allows fast load changes of the boiler.

Physical Properties

Wall thickness
0.8 mm
Channel hydraulic diameter
5.6 - 9.0 mm
Cell pitch
7.2 - 11 mm
Plate pitch
6.8 - 10 mm
Cell density
5.6 - 6.8 CPSI
Specific area
364 - 525 m2/m3
Open area
74 - 82 %
Leading edge reinforcement

Umicore Denmark (EMEA)

Nøjsomhedsvej 20
2800 Kgs. Lyngby

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Torben Slabiak

T+45 2265 7541

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