Three yuan in DX7
The automobile three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. It can convert harmful gases such as CO, HC and NOx discharged from automobile exhaust into harmless carbon dioxide, water and carbon dioxide through oxidation and reduction. Nitrogen.
The working principle of the three-way catalytic converter is: when the high-temperature automobile exhaust passes through the purification device, the purifier in the three-way catalytic converter will enhance the activity of the three gases CO, HC and NOx, and promote a certain oxidation-reduction chemical reaction. , Where CO is oxidized at high temperature to become colorless and non-toxic carbon dioxide gas; HC compound is oxidized to water (H20) and carbon dioxide at high temperature; NOx is reduced to nitrogen and oxygen. Three kinds of harmful gases become harmless gases, so that car exhaust can be purified.
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