FIND

Catalysts for NOx Destruction
(DeNOx / SCR Catalysts)

We can provide catalysts for typical Nitrogen Oxide (NOx) destruction (NHD series, with vanadium-tungsten), and also high-temperature resistant DeNOx catalysts (NCD series, vanadium-free).
As NOx are subjected to regulation through laws for air pollution control, various methods can be found to suppress NOx emission in processes. To face those restrictions and adapt processes, there are mainly two methods: a wet method using caustic soda and a dry method (through DeNOx catalyst and reducing agent to reduce NOx to nitrogen).
In most cases the dry method is preferred because the wet method uses a liquid to absorb NOx which makes the process complicated and difficult to operate with sufficient efficiency and at low cost.

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Catalyst Specifications

Catalyst type NHD series NCD series
Shape Honeycomb monolith Honeycomb monolith
Number of cells 45 cells/inch2 200 cells/inch2
Standard size 150×150×500t mm 150×150×50t mm
Apparent bulk density Approx. 0.6 g/cc Approx. 0.4 g/cc
Allowable temperature range ~410℃ ~600℃

Catalyst Performance Graph

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For inquiries:

Department Environmental Catalyst Div.
Contact Form
TEL ARIOKA:+81-90-5398-5199 (Japanese, English)
PIET:+81-80-4462-6530 (French, English)
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