What is catalytic converter

A catalytic converter is an essential component of a vehicle's exhaust system that helps to reduce the emissions of harmful pollutants such as carbon monoxide, nitrogen oxides, and hydrocarbons. It achieves this by using a series of chemical reactions to convert these pollutants into less harmful substances before they are released into the atmosphere.

The working process of a catalytic converter involves three main stages: reduction, oxidation, and storage. During the reduction stage, the converter uses a reduction catalyst such as platinum or palladium to convert any nitrogen oxides in the exhaust gas into nitrogen and oxygen. In the oxidation stage, a separate oxidation catalyst such as rhodium or palladium is used to convert carbon monoxide and unburned hydrocarbons into carbon dioxide and water.

Finally, during the storage stage, any excess oxygen in the exhaust gas is used to convert any remaining pollutants into harmless gases such as nitrogen and carbon dioxide. The pollutants are temporarily stored in an oxygen-rich environment within the converter until there is enough oxygen available to complete the conversion process.

Overall, catalytic converters play a critical role in reducing the environmental impact of vehicles by significantly reducing the amount of harmful pollutants emitted into the atmosphere. In addition to being required by law in many countries, they also help to improve air quality and protect the health of both humans and wildlife by reducing the prevalence of respiratory diseases and other health issues associated with air pollution.