Does China V Emission Standard Include Three-Way Catalytic Converter?
1 Answers
China V emission standard vehicles are equipped with three-way catalytic converters. Below is relevant information about three-way catalytic converters: 1. Function: The three-way catalytic converter, installed as the most crucial external purification device in a vehicle's exhaust system, transforms 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 catalyst in the three-way catalytic converter enhances the activity of CO, HC, and NOx gases, promoting specific oxidation-reduction chemical reactions. CO oxidizes into colorless, non-toxic carbon dioxide gas at high temperatures; HC compounds oxidize into water (H2O) and carbon dioxide; and NOx reduces into nitrogen and oxygen. These three harmful gases are converted into harmless substances, thereby purifying vehicle exhaust.