What Does a Three-Way Catalytic Converter Look Like?
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Automotive three-way catalytic converters are externally constructed with double-layer stainless steel thin plates formed into a cylindrical shape, with insulating material such as asbestos fiber felt placed between the double-layer plates. Inside, a purifying agent is installed within the mesh partition. Below is relevant information about automotive three-way catalytic converters: 1. Introduction: The automotive three-way catalytic converter is the most important external purification device installed in a vehicle's exhaust system. 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. Principle: When high-temperature vehicle exhaust passes through the purification device, the purifying agent in the three-way catalytic converter enhances the activity of the three gases—CO, HC, and NOx—promoting specific oxidation-reduction chemical reactions. Among these, CO oxidizes at high temperatures into colorless, non-toxic carbon dioxide gas; HC compounds oxidize at high temperatures into water (H2O) and carbon dioxide; and NOx is reduced into nitrogen and oxygen. The three harmful gases are transformed into harmless gases, thereby purifying the vehicle exhaust.
