Direct- Fit Three-way catalytic converter

Three Way Catalytic Converter refers to the conversion of harmful gases such as CO, HC and NOx from automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction. The carrier part of the Exhaust Pipe Catalytic Converter is a piece of porous ceramic material, which is installed in a special exhaust pipe. It is called a carrier because it does not participate in the catalytic reaction itself, but is covered with a coating of precious metals such as platinum, rhodium, palladium and rare earths. It is the most important external purification device installed in the automobile exhaust system.

The working principle of the Direct- Fit Three Way Catalytic is: when the high-temperature automobile exhaust passes through the purification device, the purifier in the three-way Catalytic Converter will enhance the activity of the three gases CO, hydrocarbons and NOx, and promote it to undergo a certain oxidation-reduction chemical reaction, in which CO oxidized into a colorless, non-toxic carbon dioxide gas at high temperature; Hydrocarbons are oxidized to water (H2O) and carbon dioxide at high temperatures; NOx is reduced to nitrogen and oxygen. Three harmful gases become harmless gases, so that car exhaust can be purified. Assuming there's still oxygen available, the air-fuel ratio is reasonable.