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Selective Catalytic Reduction Catalyst

Place of Origin:China
Brand Name:HENTEK CAT Auto Parts
Model Number:
Minimum Order Quantity:20pcs
Packaging Details:Bubble film + carton
Delivery Time:one month
Payment Terms:Pay before shipment
Supply Ability:5000L/day

SCR is a treatment process for nitrogen oxides in the exhaust emissions of diesel vehicles, that is, under the action of catalysts, the nitrogen oxides in the exhaust gas are reduced to nitrogen and water that are harmless to air pollution.

Suitable for after-treatment of diesel engine NOx emissions. At the front end of the SCR catalyst, urea is introduced as a reducing agent. After the urea is hydrolyzed to NH3, the NO and NO2 in the exhaust gas are reduced to N2, and NOx is effectively removed under the oxygen-enriched condition of the diesel engine. It has good low temperature activity, wide temperature window and stability, and can meet the Euro V emission standard when matched with the whole machine. The products are suitable for light-duty diesel vehicles (such as cars, SUVs, MPVs) on roads, heavy-duty diesel vehicles (such as buses, heavy trucks, forklifts, etc.), as well as other non-road use diesel engine fixed equipment or devices.

Selective catalytic reduction (SCR) catalyst is a high-tech product widely used in thermal power plants, coal-fired power plants, waste incineration plants, iron and steel plants, fertilizer plants, nitric acid plants, cement plants, petrochemical chemical plants and other industries which need to reduce the NOx emissions. Selective catalytic reduction (SCR) catalyst is a denitration catalyst in the appropriate temperature, using ammonia (NH3) as the reducing agent, take the advantage of the reducing agent selective, preferentially reaction with industrial flue gas of nitrogen oxide (NOx), NOx is converted into no pollution of nitrogen and water, and NOx reduction efficiency is as high as above 90%. our SCR de-nitrogen catalyst was made by using cordierite honeycomb ceramics as the support, using TiO2、CuO、V2O5、Rare earth and WO3 as the main active components. It has great advantages in strength and prevention of fly ash clogging , wearing and anti-poisoning.

Serial No.Test ItemsTechnical Specification
1Carrier specifications150×150×50, Wall thickness= 3.7±0.1
2NOx concentration ≤5000ppm
3Reductive agentLiquid ammonia, ammonia water or urea
4Space velocity3000~10000 h-1
5operation temperature                                        Optimal operation temperature150°C-420°C                                        260°C-300°C
6NOx concentration ≥90﹪
7Service life≥2years
8Ammonia escape ratio≤30ppm
9Bulk density0.72±0.05g/ml
10Crushing strength≥14 MPa(Front)                                        ≥4 MPa(Side)
11Coating loading>8.0%
12Active Metal oxide loading>9.0%
13Expulsion rate<1%
14AppearancePure black
15PackageMoisture-proof and Sealed

Quick Detail:

1. Good low temperature activity and wide temperature window 2. Excellent hydrothermal aging and sulfur resistance 3. Low ammonia release 4. Low environmental toxicity

Competitive Advantage:

1. Good dispersion of precious metals;

2. Lower ignition temperature;

3. Good high temperature resistance;

4. Good anti-toxicity

5. Life indicators: 50,000 kilometers for in-use vehicles and 200,000 kilometers for new production vehicles.


Motor vehicle exhaust aftertreatment catalyst and converter

— DOC/DPF/SCR: Catalysts for light and heavy diesel vehicles (China III, China IV, China V, and China VI)

Technical parameter

Most specifications can be made, and less commonly used specifications can be customized. The following specifications are for reference.

TypeShapeNumber of holesWall thickness(mm)Outer diameter or long and short diameter range(mm)Height range(mm)Tolerance range(mm)
SCR Carrier - Below China VIcylindrical300/50.130±0.025143.8-330.276.2-178±1.5
SCR Carrier - Country VIcylindrical400/40.114±0.025150-330.280-155±1.5



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