The working principle of the three-way catalytic converter

- Dec 02, 2018 -

The working principle of the three-way catalytic converter

The working principle of the three-way catalytic converter is: when the high-temperature automobile exhaust gas passes through the purification device, the purifying agent in the three-way catalytic converter will enhance the activity of three gases of CO, hydrocarbon and NOx, and promote the oxidation-reduction thereof. A chemical reaction in which CO is oxidized to a colorless, non-toxic carbon dioxide gas at a high temperature; hydrocarbons are oxidized to water (H20) and carbon dioxide at a high temperature; and NOx is reduced to nitrogen and oxygen. The three harmful gases become harmless gases, allowing the car exhaust to be purified. The premise is that there is oxygen available and the air-fuel ratio should be reasonable.