The three way converter is the most important external purification device installed in the automobile exhaust system. It can convert harmful gases such as CO, carbon monoxide, HC hydrocarbons, and NOx nitrogen oxides discharged from the automobile exhaust into oxidation and reduction. Harmless carbon dioxide, water, nitrogen.inquiry
The three way converter is installed in the automobile exhaust system and is the most important external purification device. This catalyst can simultaneously convert various major harmful substances in automobile exhaust into harmless substances. With the increasingly stringent environmental protection requirements, more and more automobiles are equipped with exhaust gas catalytic converters and oxygen sensor devices, which can convert harmful gases such as CO, HC and NOx emitted from automobile exhaust into harmless carbon dioxide, water and Nitrogen.
The shape of the three-way catalytic converter is generally cylindrical or rounded cuboid. The interior of the three-way catalytic converter is composed of asbestos fiber felt, purifying agent, carrier, metal platinum, rhodium, palladium and other components, of which platinum, rhodium and palladium are the components of the catalytic converter. main catalyst.
When the high-temperature automobile exhaust gas passes through the purification device, the purifying agent in the three-way catalytic converter will enhance the activity of CO, HC and NOx, and promote them to carry out a certain oxidation-reduction chemical reaction, in which CO is oxidized at high temperature to become non-volatile Color, non-toxic carbon dioxide gas; HC compounds are oxidized to water (H20) and carbon dioxide at high temperature; NOx is reduced to nitrogen and oxygen. The three harmful gases are turned into harmless gases, so that the exhaust gas of the car can be purified.
The three-way catalytic converter catalyst substrate is a piece of porous ceramic material that is installed in a special exhaust pipe. It is called a carrier because it does not participate in the catalytic reaction itself, but is covered with a layer of precious metals such as platinum, rhodium, and palladium.