The three-way catalytic converter is the most important external purification device installed in the exhaust system of automobiles. It can convert harmful gases such as CO, HC and NOx discharged from automobile exhaust into harmless carbon dioxide, water and other harmful gases through oxidation and reduction. Nitrogen. When the high-temperature automobile exhaust gas passes through the purification device, the purifying agent in the three-way catalyst will enhance the activity of CO, HC and NOx, and promote a certain oxidation-reduction chemical reaction. Color, non-toxic carbon dioxide gas; HC compounds are oxidized to water (H20) and carbon dioxide at high temperature; NOx is reduced to nitrogen and oxygen. The three harmful gases are turned into harmless gases, so that the exhaust gas of the car can be purified.
Because this catalyst can simultaneously convert the three main harmful substances in the exhaust gas into harmless substances, it is called ternary.