Where is the automotive three-way catalytic converter located?

[LaCamilla]

The three-way catalytic converter is located in the chassis section of the engine, inside the first bulge of the vehicle's exhaust pipe. It serves as a crucial filtration device in the engine's exhaust system, converting harmful substances produced by the engine into harmless substances before they are expelled from the vehicle. The function of the three-way catalytic converter is to transform harmful gases such as CO, HC, and NOx emitted from the vehicle's exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction processes. When high-temperature exhaust gases pass through the purification device, the purifying agents in the three-way catalytic converter enhance the activity of CO, HC, and NOx, promoting specific oxidation-reduction chemical reactions. CO oxidizes at high temperatures into colorless, non-toxic carbon dioxide gas; HC compounds oxidize into water (H2O) and carbon dioxide; and NOx is reduced into nitrogen and oxygen. These three harmful gases are converted into harmless gases, thereby purifying the vehicle's exhaust emissions.