Flue Gas Denitrification Plate Catalyst with Carrier Support for Durability

In the production process of electric power, petrochemical, chemical, coal, metallurgy, glass, alumina, ceramics, refractory, cement and other industries will produce many types of Nitrogen Oxides (NOX), including Nitrous Oxide (N₂O), Nitric Oxide (NO), Nitrogen Dioxide (NO₂), etc. Among them, the NO and NO₂ are common air pollutants. So, the flue gas denitrification is critical important and requisite measure for the enterprise.

The main denitrification treatment methods include Selective Catalytic Reduction (SCR), Selective Non-Catalytic Reduction (SNCR) and so on. Plate type, honeycomb type and corrugated type catalysts are main types of SCR. Plate type catalysts have various advantages than the other two types.

Plate type SCR catalyst adopts stainless steel micro expanded metal as the carrier for catalytic material and Titanium dioxide, vanadium oxide and molybdenum oxide served as active catalytic materials to corrugate, mold and cut into single pieces assembled into a catalyst unit box. And then assembled into a catalyst module after calcining.

• Superior dust resistance performance to the honeycomb type, which is more suitable for places where dust content is over 50 g/Nm³
• Support with stainless steel micro expanded metal mesh and 80% porosity, the plate type catalyst is not easy to touch ash, highly wear resistant and featuring low resistance and pressure reduction. It is recommended for places where under the high ash content conditions.
• Excellent stainless steel expanded metal support, the structure will not loose or breakage even when the active material losing. Additionally, it will not cause collapse even under continuously attack by flue and gases.

Stainless Steel Micro Expanded Metal

• Accurate production can guarantee the right direction of openings and products length.
• Integrated structure will not loose during production.
• Smooth surface and without any edge damage to guarantee the material even distribution.
• The height of upwarping is less than 2 cm when spread the 1 m length micro expanded metal on the flat ground.
• The recoil deviation of micro expanded metal not exceed 2cm.
• Standard material is 10Cr17 (SUS 430) and all materials are qualified and can supply the mill certification.
• The micro expanded metal is through degreasing treatment under 550 °C temperature and the good toughness will not be affected.
• The maximum production length can achieve 2000 m and has less than 2 welding spots. The overlap distance of two rolls is less than 5 cm.
• Tensile strength ≥450 N/mm², Yield Strength ≥205 N/mm², elongation ≥22%, hardness ≤200