Hello everyone, today we're going to talkWhat is an automotive three-way catalytic converter? What is the function and principle of automotive three-way catalytic converter?
The automotive three-way catalytic converter is an external purification device installed in the exhaust system of automobiles, which can convert harmful gases such as CO (carbon monoxide), HC (hydrocarbons) and NOx (nitrogen oxides) in automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction. This catalytic converter can convert the three main harmful substances in the exhaust gas into harmless substances at the same time, so it is called ternary.
The function of the three-way catalytic converter is to reduce the pollution of automobile exhaust to the environment and the human body, improve air quality, and protect human health. Harmful gases such as CO, HC and NOx in automobile exhaust will not only cause environmental problems such as greenhouse effect, acid rain, and photochemical smog, but also cause various diseases such as respiratory, cardiovascular and nervous systems, and even cause cancer. The three-way catalytic converter can effectively reduce the emission of these harmful gases, so that the automobile exhaust gas can meet the national and regional emission standards.
The principle of the three-way catalytic converter of automobiles is to use the oxidation and reduction ability of the catalyst to promote the chemical reaction of harmful gases in the exhaust gas with oxygen to generate harmless gases. The inside of the automotive three-way catalytic converter is a honeycomb carrier made of porous ceramics or metals, and the surface is coated with platinum, rhodium, palladium and other catalysts. When the high-temperature automobile exhaust gas passes through the catalytic converter, the catalyst will enhance the activity of CO, HC and NOx, causing the following oxidation and reduction reactions:
co + 1/2 o2 → co2hc + o2 → co2 + h2onox + co → n2 + co2nox + hc → n2 + co2 + h2o
The above is **What is a three-way catalytic converter for automobiles? What is the function and principle of automotive three-way catalytic converter? **A brief introduction, I hope it will be helpful to you. If you have any other questions about automotive three-way catalytic converters, please leave a message to me, and I will try my best to answer. I am a ten-year car repair master, Lao Zhang repairs the car, we will see you next time! Three-way catalysis