What Does a Car Three-Way Catalytic Converter Look Like?
1 Answers
The exterior of a car three-way catalytic converter is made of double-layer stainless steel thin plates formed into a cylindrical shape, with insulating material asbestos fiber felt placed in the interlayer between the double-layer thin plates. Inside, a purifying agent is installed between the mesh partitions. Below is relevant information about the car three-way catalytic converter: 1. Introduction: The car three-way catalytic converter is the most important external purification device installed in the car's exhaust system. It converts harmful gases such as CO, HC, and NOx emitted from the car exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. 2. Principle: When high-temperature car 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 certain oxidation-reduction chemical reactions. Among these, CO oxidizes at high temperatures to become colorless, non-toxic carbon dioxide gas; HC compounds oxidize at high temperatures into water (H2O) and carbon dioxide; and NOx is reduced to nitrogen and oxygen. The three harmful gases are transformed into harmless gases, thereby purifying the car exhaust.
