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What is the purpose of a car catalytic converter?

3 Answers
StCorbin
08/27/25 3:29am
The function of a three-way catalytic converter is to transform harmful gases emitted by vehicles into harmless gases. Here is relevant information: 1. Appearance: The three-way catalytic converter looks like a metal can externally, but contains a 'substrate' inside for purifying exhaust gases. This honeycomb-shaped ceramic substrate is coated with a precious metal slurry, primarily composed of platinum, rhodium, and palladium. 2. Exhaust purification function: The precious metals act as catalysts, reducing HC and CO in the exhaust into water and CO2, while decomposing NOx into nitrogen and oxygen. This is the exhaust purification function of the three-way catalytic converter.
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Jim
09/09/25 2:40am
As someone particularly concerned about environmental protection, I believe car catalytic converters are a powerful tool for reducing pollution. They transform harmful gases in exhaust emissions, such as nitrogen oxides and carbon monoxide, into harmless water vapor and carbon dioxide, significantly improving air quality. In urban life, I see the severe problem of smog, and the widespread use of catalytic converters allows us to breathe cleaner air while also reducing the risk of lung cancer. Although electric vehicles are the future trend, catalytic converters make traditional fuel-powered cars greener, and we must maintain them properly. Additionally, catalytic converters help vehicles pass emission tests, avoiding fines. Promoting clean transportation is my wish, and everyone should prioritize emission control to collectively protect our blue skies and white clouds.
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StVictoria
10/23/25 3:29am
With decades of experience in auto repair, I deeply understand the critical role of catalytic converters in purifying exhaust gases. They utilize internal catalysts to chemically transform toxic emissions, ensuring vehicles meet emission standards. Common issues encountered during routine maintenance include clogging leading to power loss, surging fuel consumption, or illuminated warning lights, and even noise generation. Catalytic converters are prone to damage or theft (due to containing precious metals like platinum), so I advise car owners to regularly inspect the exhaust system and check during oil changes. From a cost perspective, although replacement is expensive when damaged, it avoids inspection failures and fines. Proper maintenance extends vehicle lifespan, reduces hassle, and cleaner emissions benefit health.
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