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.
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
For inquiries:
| Department | Environmental Catalyst Div. |
|---|---|
| Contact Form | |
| TEL | ARIOKA:+81-90-5398-5199 (Japanese, English) PIET:+81-80-4462-6530 (French, English) *Do not hesitate to reach out to us by using the contact form, we will come back to you as soon as possible. |