Do All Cars Have a Three-Way Catalytic Converter?
1 Answers
Not all cars have a three-way catalytic converter, but currently produced vehicles are equipped with one. In earlier years, vehicles manufactured in China that did not meet the National II emission standards were not equipped with three-way catalytic converters. Below is a detailed introduction about automotive three-way catalytic converters: 1. Overview: The 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 catalyst in the three-way catalytic converter enhances the activity of CO, HC, and NOx gases, promoting specific oxidation-reduction chemical reactions.