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Three-way catalytic converter Aug 14, 2018

Three-way catalytic converter

The three-way catalytic converter is the most important off-board purification device installed in the exhaust system of automobiles. It can convert harmful gases such as CO, HC and NOx emitted from automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction. . When the high-temperature automobile exhaust passes through the purification device, the purifying agent in the three-way catalytic converter will enhance the activities of the three gases CO, HC and NOx, and cause it to undergo a certain oxidation-reduction chemical reaction, in which CO is oxidized at a high temperature to become Color, non-toxic carbon dioxide gas; HC compounds are oxidized to water (H20) and carbon dioxide at high temperatures; NOx is reduced to nitrogen and oxygen. The three harmful gases become harmless gases, allowing the car exhaust to be purified.