The SCR denitrification catalyst mainly uses TiO2as the carrier, V2O as the main active component, and WO3 and MoO3 as antioxidant and anti toxic auxiliary components. By using a ceramic extrusion device, catalyst elements with a cross-section of 150mmX150mm and varying lengths are produced, and then assembled into standard modules with a cross-section of approximately 2mx1m.
Selective catalytic reduction (SCR) is the process of reducing nitrogen oxides in exhaust gas to nitrogen and water by adding liquid ammonia, ammonia water, or urea as reducing agents at a certain temperature and under the action of SCR catalyst. O2 in the exhaust gas does not participate in the reaction. The typical chemical reaction is as follows:
4NH3 + 6NO → 5N2 + 6H2O
8NH3+ 6NO2 → 7N2 + 12H2O
| No. of holes |
Inner wall thickness(mm) |
Outer wall thickness(mm) |
Aperture(mm) |
Porosity(%) |
Surface area(m²/m³) |
| 15x15 |
1.1 |
1.7 |
8.7 |
75.7 |
347 |
| 16x16 |
1.0 |
1.5 |
6.2 |
76.4 |
372 |
| 18x18 |
1.0 |
1.4 |
7.2 |
75.2 |
415 |
| 20x20 |
1.0 |
1.5 |
6.4 |
75.3 |
456 |
| 21x21 |
0.9 |
1.4 |
6.2 |
75.1 |
485 |
| 22x22 |
0.8 |
1.3 |
5.9 |
75.4 |
509 |
| 25x25 |
0.8 |
1.3 |
5.1 |
73.2 |
569 |
| 30x30 |
0.7 |
1.2 |
4.2 |
71.4 |
667 |
| 35x35 |
0.6 |
1.2 |
3.7 |
69.5 |
780 |
| 40x40 |
0.6 |
1.0 |
3.2 |
68.8 |
887 |
| 45x45 |
0.5 |
1.0 |
2.77 |
65.6 |
972 |
Unit size: L × W × H=150 mm × 150 mm × mm (can be made as for customer's demand)
Hole range: 15x15 to 22x22. Modular design is used to fit 72 holes into one module
Module 1912 × 974 × H
Catalyst filling height to diameter ratio: 1:1~2:1
NOx concentration ≤ 5000ppm
Reducing agents such as liquid ammonia, ammonia water, or urea must be introduced in a saturated gaseous form
Reaction temperature: 180-420 ºC
Gas velocity 3000~5000 h-1
NOx conversion rate ≥ 90% (or outlet NOx ≤ 100ppm)
Ammonia escape rate ≤ 30ppm
Pressure loss ≤ 600pa (when the bed height to diameter ratio is 1:1 or the linear velocity is ≤ 1.5m/s)
Catalyst service life: 24000 hours
1. Adopting the most suitable microporous volume to achieve a better balance between denitrification performance and wear resistance;
2. Design the most suitable microporous distribution to achieve stable denitrification performance;
3. Using the most suitable active ingredients to effectively suppress SO2/SO3 while ensuring denitrification rate
Conversion rate;
4. By adding a third component, the conversion rate of SO2/SO3 can be effectively suppressed during operation
rise;
5. The product has uniform activity, and even after the surface is worn, the remaining activity remains unchanged;
6. Low resistance, saving operating costs;
7. Low temperature high activity, high NOx removal rate;
8. High water resistance;
9. High temperature corrosion resistance;
10. High mechanical strength and heat resistance.
The Selective Reduction (SCR) denitrification process has been widely used in industrial fields such as thermal power plants, coal-fired power plants, gas turbine units, waste incineration, steel, petrochemicals, and internal combustion engine units.
| Package Type |
Container Load Capacity |
Delivery time |
Quality Insurance |
Payment Terms |
| 20GP |
40GP |
| Ton bag |
20m3 |
40m3 |
Within 7-14 days |
Chinese National Standard; Offer quality assurance as request. |
T/T, L/C, Paypal, West Union |
| Plastic bag |
20m3 |
40m3 |
| Paper box |
20m3 |
40m3 |
| Wooden box |
20m3 |
40m3 |
Pingxiang Obbo Environmental Technology Co., Ltd is an industrial ceramic manufacturer and advanced ceramic research company, which is located in Jiangxi Pingxiang Industrial Ceramic Park - the capital of ceramic in China. Obbo environmental is specializing in manufacturing ceramic media and distributing its products over the world.
The main Industrial ceramic media we produce includes: Ceramic Honeycomb carrier, honeycomb ceramic Heat Recovery Media, Catalyst Carrier, ceramic foam filter, three way catalytic converter, as well as ceramic packings and related products. We provide customized solutions for honeycomb ceramic media and our products are widely applied in the industries of chemical, electric power, metallurgy, petroleum, electronics, electrical appliances, machinery, environmental, residential, etc.
With the team of ceramic professionals and senior consultants, Obbo environmental has made significant breakthroughs of high temperature material and high cell density honeycomb ceramics and it will keep pushing the edges.
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