A Diesel Oxidation Catalyst (DOC) converter is a device installed in diesel engine exhaust systems. Its primary role is to reduce emissions of carbon monoxide (CO), unburned hydrocarbons (HC), and particulate matter. The DOC achieves this by facilitating chemical reactions that transform these pollutants into less harmful substances like carbon dioxide (CO2) and water vapor. Typically made from ceramic substrates coated with precious metals such as platinum, palladium, or rhodium, the DOC is designed to maximize contact between exhaust gases and catalytic surfaces. This process ensures efficient conversion at various engine operating conditions.

Top Companies & Ecosystem

• Cataler: Known for high-performance catalytic substrates and innovative designs.

 • BASF: Offers advanced catalyst formulations with a focus on durability and efficiency.

 • Johnson Matthey: A leader in precious metal catalysts and emission control solutions.

 • Eberspächer: Specializes in exhaust technology and emission reduction systems.

 • CeramTec: Provides ceramic substrates optimized for high-temperature operation.

 • Emitec: Focuses on catalyst systems for automotive and industrial applications.

 • NGK Insulators: Supplies ceramic components with high thermal stability.

 • Tenneco: Develops integrated emission control systems for various vehicle types.