3 Way Catalyst

3 Way Catalyst, also called catalytic converter. The device is installed in the exhaust system of the automobile, and its function is to use the catalyst in the converter to convert the carbon monoxide CO, hydrocarbons HC, and nitrogen oxides NOx in the exhaust gas from the engine into harmless gases.

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Three-way Catalytic Converter Structure:

3 way catalyst is composed of shell, shock absorption layer, heat insulation layer, catalyst substrate, and catalyst coating.

Catalyst Coating
Palladium Pd, platinum Pt, palladium Rh, coated on the inner wall of the vent pipe in the catalyst substrate.

Catalyst Substrate
There are two types of metal and ceramics, and the shape is honeycomb.

3 way catalyst three way catalytic converters TWC

Honeycomb Ceramic Substrate:

After being coated with a catalyst, it is applied to the exhaust gas purification treatment of gasoline vehicles to catalytically convert the exhaust gas emitted by gasoline vehicles.
The products meet the requirements of various specifications and models of vehicles, as well as meet the requirements of more stringent emission standards. The size and quality can be customized according to the needs of customers.

No. Section Shape Specification holes / square inch No. Section Shape Specification   holes / square inch
1 cylinder Ø80*50/60/80/100 400 18 Race track 145*80*70/100 400
2 cylinder Ø83*50/80/100 400 19 Race track 144.3*68.1*100/125 400
3 cylinder Ø83*50/80/100 400 20 Race track 148*84*65/100/120/152 400
4 cylinder Ø93*50/80/100/125 400 21 Oval 125*80*100/120/128 400
5 cylinder Ø100*80/100 400 22 Oval 130*85*100 400
6 cylinder Ø101.6*80/123.4 400 23 Oval 131.5*87.5*100/115 400
7 cylinder Ø103*70/80/100/130 400 24 Oval 136*94*100/120/140 400
8 cylinder Ø106*70/75 400 25 Oval 136*94*120/130/152 400
9 cylinder Ø106*80/100/120/130 400 26 Oval 147*95*100/120/130 400
10 cylinder Ø110*75/100/110/130 400 27 Oval 147*95*152.4 400
11 cylinder Ø110*100/110/130 400 28 Oval 153*103*100/115 400
12 cylinder Ø118*55/75/80/95/120 400 29 Oval 161.5*109*115 400
13 cylinder Ø123*55/80/100/130 400 30 Oval 165*116*120 400
14 Race track 95*70*120 400 31 trapezoid 118*91*96*100/130 400
15 Race track 98*70*115 400 32 quadrangle 120*100*100/115 400
16 Race track 105*58*115-400 400 33 quadrangle 120*100*115-400 400
17 Race track 120*80*50/70/100/120 400 34 special-shaped 143.5*84*155-400 400

Technical Support of 3 Way Catalyst:

1. The carrier adopts a special ceramic carrier/metal carrier, which has good high temperature resistance, suitable specific surface and pore distribution;
⒉The rare earth composite oxide used in the catalytic converter has high oxygen storage performance, high specific surface area and high heat resistance, reaching the international advanced level;
3. The precious metal components of the catalytic active material are highly dispersed, and the oxygen storage capacity and catalytic activity of the catalyst are greatly improved;
4. The catalyst production process is simple and the technical level is advanced, which ensures a good match between the various raw materials of the catalyst and the honeycomb matrix.