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De-NOx catalysts/De-DXNs catalysts

The de-NOx catalyst reduces and eliminates nitrogen oxide generated through power plants and incineration.
The de-DXNs catalyst breaks down and eliminates dioxins generated through garbage incineration. Both catalysts contribute to environmental cleansing, and they are expected to gain increasing attention in coming years.
SCI is a manufacturer of titanium oxide, which is a primary raw material for these catalysts. We are the only manufacturer that can provide technological consistent from raw materials to catalysts products. We are confident that we have a product to suit your particular need, and we welcome your inquiries.

De-NOx catalysts/de-DXNs catalysts

  • SCI’s de-NOx catalyst technology is highly valued and has acquired the following accolades.
  • ◯We obtained an Important Technology Research and Development Fund Grant from the Ministry of International Trade and Industry. We achieved desired results and were certified as successful.
  • ◯We were awarded the 33rd Chemical Technology Prize by the Kinki Chemical Society, Japan.
  • ◯Our "development of the selective catalytic reduction catalyst by ammonia" was awarded the Technology Prize by the Catalysis Society of Japan in 1989.

Honeycomb catalyst dimension list

Nominal pitch unit 7.4 6.0 5.0 4.2 3.7 3.3 3.0 2.5
External diameter mm 150 150 150 150 150 150 150 150
Cell number cell×cell 20×20 25×25 30×30 35×35 40×40 45×45 50×50 60×60
Opening diameter mm 6.23 4.98 4.13 3.65 3.19 2.78 2.56 2.06
Inner wall thickness mm 1.15 0.90 0.80 0.58 0.50 0.50 0.40 0.40
Opening ratio 69.0 69.0 68.1 72.7 72.5 69.7 72.8 67.9
Contact area m2/m3 442 553 660 795 908 1001 1137 1318
Applicable range (fuel)
LNG, LPG, Kerosene
Oil (low-sulfur heavy crude oil)
   (high-sulfur heavy crude oil)
  (Heavy oil)
Coal(high dust)
   (low dust)
‹Gas after desulfurization›
Municipal waste
   (BF backwash)
   (Scrubber backwash)

*The data are typical values.

Catalyst operating temperature

Catalyst operating temperature

Reaction mechanism of NH3-SCR

Reaction mechanism of NH3-SCR

Contact Information

○ Catalysts Operations Division
  Tel:(Tokyo) 81-3-5823-3724 Tel:(Osaka) 81-72-223-4155

To know address or FAX

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