What is a Car Three-Way Catalytic Converter?

1 Answers
VonAlejandro
07/30/25 3:28am
Three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. Here are the details: Function: The three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. It can convert harmful gases such as CO, HC and NOx emitted by automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction. Design Principle: When high-temperature exhaust gas passes through the purification device, the purifying agent in the three-way catalytic converter will enhance the activity of CO, HC and NOx, promoting certain oxidation-reduction chemical reactions. Among them, CO is oxidized at high temperature to become colorless and non-toxic carbon dioxide gas; NOx is converted into nitrogen and oxygen. The three harmful substances are converted into non-toxic gases, thereby purifying the exhaust emissions.
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