Three-Way Catalyst -

Three-Way Catalyst

DOC (Diesel oxidation catalyst) is a device installed in the exhaust system of diesel vehicles to reduce exhaust emissions. DOC is the first step in the aftertreatment of exhaust gas, and it is also a device that converts CO and hydrocarbons in exhaust gas into harmless CO2 and H2O.

Excessive sulfur and phosphorus elements are produced in the exhaust gas, which can easily lead to the failure of the DOC device.

Therefore, the National VI diesel engine oil should not only have low ash content, but also a low sulfur and low phosphorus formula.

TWC Technical Features:

1. The precious metals are mainly Pt or Pt and Pd;

2. The DOC slurry is configured by dipping;

3. Other auxiliary materials are added to increase the conversion rate and reduce the light-off temperature.

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.

Technical Parameter

Type	Shape	Number of holes	Wall thickness（mm）	Outer diameter or long and short diameter range（mm）	Height range（mm）	Tolerance range（mm）
Straight-through leather carrier	cylindrical	400/6	0.165±0.025	93-143.8	50.8-152.4	±1
		600/6		Meet user customization
	Ellipse, runway type and special type	400/600