Product description?

Name : Universal gasoline car catalyst

Precious metals: platinum, palladium, rhodium

Size:

Diameter?118mm

Length?55mm

Contact us?

whatsapp:+86 136 817 11685

Email: Kesairay@proton.me

The package includes: 1pcs catalytic converter

Note:

Size error ±1mm

What is a gasoline car catalyst?

Gasoline vehicle catalyst usually refers to the catalytic substance used in the three-way catalytic converter installed in the gasoline vehicle exhaust system.

These catalysts are generally composed of platinum (Pt), palladium (Pd), rhodium (Rh) and other precious metals. Their role is to promote the chemical reaction of harmful gases in automobile exhaust, carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides (NOx) into harmless carbon dioxide (CO?), nitrogen (N?), water (H?O) and other substances, so as to reduce the pollution of gasoline vehicle exhaust to the environment.

For example, a normal running gasoline car, its engine combustion generated exhaust contains a lot of harmful gases. When the tail gas passes through the three-way catalytic converter, the catalyst will make CO react with O? to produce CO?, HC react with O? to produce CO? and H?O, and promote the conversion of NOx into N? and O?. Through these chemical reactions, the emission of harmful gases is greatly reduced, so that the automobile exhaust meets the environmental protection standards.

Working principle of ceramic catalysts for gasoline vehicles

The ceramic catalysts used in gasoline vehicles are usually located in the three-way catalytic converter, and their working principle is mainly based on the following chemical reactions:

Oxidation of carbon monoxide (CO) and hydrocarbons (HC) :

The catalyst (usually platinum, palladium and other precious metals) promotes the reaction of CO with oxygen to produce carbon dioxide (CO?), the reaction formula: 2CO + O? ? 2CO?

Likewise, the HC reacts with oxygen to form CO? and water (H?O), for example: C?H? + (x + n/4)O? ? xCO? + (n/2)H?O

Reduction of nitrogen oxides (NOx, mainly nitric oxide NO and nitrogen dioxide NO?) :

Under the action of a catalyst, NOx reacts with carbon monoxide (CO), hydrocarbons (HC), or hydrogen (H?) and is converted into harmless substances such as nitrogen (N?) and water (H?O).

For example, when the exhaust gas after gasoline combustion enters the three-way catalytic converter, the CO and HC in it are rapidly combined with oxygen under the catalysis of platinum and palladium, and converted into harmless CO? and H?O discharge. At the same time, NOx also reacts with other components in the exhaust gas on the catalyst surface and is reduced to N?, which effectively reduces the emission of harmful pollutants in the exhaust gas.