The Best Selling Catalytic Converter Available Honda Civic

Product introduction

The Best Selling Catalytic Converter  Available  Honda Civic，This product we use high-quality raw materials 409 stainless steel, and with high flow ceramic carrier, to help each car can purify exhaust gas, reduce fuel consumption, improve power, and extinguish engine failure lights!

The three-way Catalytic Converter (TWC) is the core component of the automobile exhaust gas treatment system, which is mainly used to convert the Three main harmful gases emitted by the internal combustion engine into harmless substances. Here are its key takeaways:

1. Core functions

Transformation of three pollutants:

Carbon monoxide (CO) → Carbon dioxide (CO₂)

Hydrocarbons (HC) → Water (H₂O) and carbon dioxide (CO₂)

Nitrogen Oxides (NOx) → Nitrogen (N₂) and Oxygen (O₂)

The three bodies are treated at the same time through oxidation and reduction reactions, so the name "ternary".

2. Catalyst material

Using precious metals as catalysts:

Platinum (Pt) and palladium (Pd) : promote oxidation reactions (conversion of CO and HC).

Rhodium (Rh) : promotes reduction reaction (breakdown of NOx).

The catalyst is coated on a honeycomb ceramic or metal support to increase the reaction contact area.

3. Working conditions

The air-fuel ratio should be close to the theoretical value (14.7:1), which is monitored in real time by the oxygen sensor and fed back to the ECU (driving computer) to adjust the fuel injection.

Need to reach high temperature (about 250°C above) in order to work efficiently, cold start efficiency is low.

4. Example description

When the car starts, the tail gas enters the catalytic converter, under the catalysis of platinum and palladium, CO and HC react with oxygen to form CO₂ and H₂O; At the same time, rhodium causes NOx to decompose into N₂ and O₂. The oxygen sensor ensures an accurate air-fuel ratio, enabling the three reactions to be synchronized and efficient, and the final exhaust gas is discharged through the silencer, significantly reducing pollution.

5. Application and advantages

Meet strict emission standards (such as national VI, Euro VI) to reduce smog and acid rain.

Modern gasoline vehicles are standard, and diesel vehicles need to cooperate with other technologies (such as SCR) due to differences in exhaust composition.

6. Limitations and maintenance

High cost: precious metal resources are scarce, and the catalytic converter accounts for a higher proportion of the cost of the vehicle.

Sensitive issues:

Lead poisoning: Leaded gasoline can coat the surface of the catalyst and cause failure.

Sulfur effect: High sulfur content of fuel reduces catalytic efficiency.

Life: The design life is usually 8-100,000 kilometers, and it needs to be replaced after aging.

7, the three-way catalytic technology is a major breakthrough in the history of automotive environmental protection, but its performance depends on fuel quality, engine status and regular maintenance, the future or face the challenge of electrification trend, but in the field of fuel vehicles is still an indispensable emission reduction solution.