Diesel Oxidation Catalysts (DOC) are catalytic converters designed specifically for diesel engines and equipment to reduce Carbon Monoxide (CO), Hydrocarbons (HC) and Particulate Matter (PM) emissions. DOC's are simple, inexpensive, maintenance-free and suitable for all types and applications of diesel engines.

Diesel Oxidation Catalysts, also known as DOCs, are exhaust aftertreatment devices that reduce emissions from diesel fueled vehicles and equipment. Engine manufacturers have used DOCs in different in-use applications for many years, and DOCs are widely used as a retrofit technology because of their simplicity and limited maintenance requirements.

Jun 25, 2021 · The DOC in a diesel engine stands for Diesel Oxidation Catalyst. The DOC is designed to convert carbon monoxide and hydrocarbons into carbon dioxide and water. It essentially breaks down pollutants in the exhaust system from a diesel engine which helps reduce particulate matter.

3.1 Diesel Oxidation Catalysts A diesel oxidation catalyst (DOC) is employed to remove CO and hydrocarbons using the oxygen in the exhaust (5–15% of the gases). It also oxidizes NO to NO 2 , which, if left unchecked, results in elevated levels of NO 2 at the exhaust pipe exit.

The diesel oxidation catalyst (DOC) owes its name to its ability to promote oxidation of exhaust gas components by oxygen, which is present in ample quantities in diesel exhaust.

This technical bulletin provides information on diesel oxidation catalyst \(DOC\) installation, operation, and maintenance. A DOC is a retrofit technology installed on diesel engines to reduce emissions.

Jan 17, 2025 · Diesel particulate filters (DPFs) and diesel oxidation catalysts (DOCs) are exhaust after-treatment devices that reduce emissions from diesel engines.

Oct 27, 2011 · The diesel oxidation catalyst (DOC) has been part of diesel exhaust systems since regulations were introduced to limit the amount of harmful emissions released to the environment from diesel engines. The DOC primary functions are oxidation of CO, unburned hydrocarbons, and NO, while active hydrocarbon oxidation can also be used to generate ...

A new diesel catalyst technology has been developed to enhance the low temperature performance of the diesel oxidation catalyst. This technology incorporates hydrocarbon trapping materials into the catalyst washcoat. Zeolites, also known as molecular sieves, are most frequently used as the hydrocarbon trap.

Diesel Oxidation Catalysts (DOCs) play an essential role in reducing harmful emissions from diesel engines. As a key component in the exhaust system, their primary function is to catalyze the chemical reaction that converts toxic gases and particulates in …