FAQ: Catalytic Converters
How does Catalytic Converters work?
Catalytic converters are essential components of a vehicle’s exhaust system that reduce harmful emissions. They work by converting pollutants in exhaust gas into less harmful emissions through a series of chemical reactions. Inside a catalytic converter, there are typically two types of catalysts: a reduction catalyst and an oxidation catalyst. The reduction catalyst uses platinum and rhodium to reduce nitrogen oxide emissions by removing oxygen. This results in the production of nitrogen, thereby decreasing the amount of nitrogen oxides. The oxidation catalyst, which often contains platinum and palladium, oxidizes carbon monoxide and unburned hydrocarbons by adding more oxygen, turning them into carbon dioxide and water. These chemical processes significantly reduce the release of toxic emissions into the atmosphere, making vehicles more environmentally friendly.








