Why Recycle Three-Way Catalytic Converters?

[DiJoel]

Reasons for recycling three-way catalytic converters: They are used to extract precious metals, as three-way catalytic converters contain platinum, palladium, rhodium, and other precious metals. Below is relevant information about three-way catalytic converters: 1. Function: The three-way catalytic converter, installed in the vehicle's exhaust system, is the most crucial external purification device. 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. 2. Working Principle: When high-temperature vehicle exhaust passes through the purification device, the purifying agents in the three-way catalytic converter enhance the activity of CO, HC, and NOx gases, 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 at high temperatures; and NOx reduces into nitrogen and oxygen. These three harmful gases are transformed into harmless gases, thereby purifying the vehicle exhaust.