What is the purpose of a three-way catalytic converter?

[LaRobert]

The three-way catalytic converter is the most important external purification device installed in a vehicle's exhaust system. It converts harmful gases such as CO, HC, and NOx emitted from vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. Below is an introduction to the three-way catalytic converter: 1. Principle: When high-temperature exhaust gases pass through the purification device, the catalyst in the three-way catalytic converter enhances the activity of CO, HC, and NOx, promoting specific oxidation-reduction chemical reactions. CO is oxidized into colorless, non-toxic carbon dioxide gas at high temperatures; HC compounds are oxidized into water (H2O) and carbon dioxide; and NOx is reduced into nitrogen and oxygen. These three harmful gases are transformed into harmless gases, thereby purifying the vehicle's exhaust. 2. Performance characteristics: The three-way catalytic converter offers stable performance, reliable quality, and a long lifespan. Its products are widely compatible with models from Toyota, Honda, Buick, Audi, Volkswagen, Hyundai, Suzuki, Changhe, and more.