What precious metals are contained in ternary catalysis?What is the use of three-way catalysis

threeYuanThe catalyst contains rare metals such as palladium, rhodium, and platinum. The price of rare metals is relatively expensive, which leads to the high price of three-way catalytic converters. As long as the engine malfunctions, it is easy to cause damage to the three-way catalytic converter. After the three-way catalytic converter is damaged, most of the three-way catalytic converter cannot be repaired. You can only replace the three-way catalytic converter. If you just clean the three-way catalytic converter, it is There is no effect. After cleaning, the exhaust gas purification effect of the three-way catalytic converter may be reduced.

What is the use of three-way catalysis

The three-way catalytic converter can convert harmful gases such as carbon monoxide, hydrocarbons and nitrogen oxides from the exhaust gas of automobiles, and convert these harmful gases into low-polluting substances such as carbon dioxide, water and nitrogen through reduction and oxidation reactions. In fact, the precious metals such as palladium, rhodium, and platinum in the three-way catalyst act as a catalyst for reaction. Gasoline, engine oil, etc. can react with rare metals and can be converted into carbon dioxide, nitrogen and other less polluting gases.

After the three-way catalytic converter fails, the corresponding failure light will be lit on the dashboard, which reminds the car to replace the three-way catalytic converter in time to avoid heavy exhaust emissions and affect the environment. As long as the short-distance driving is not very frequent and the three-way catalytic converter is not hit, it will not be damaged so easily.