What is a Diesel Oxidation Catalyst (DOC)?

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The Diesel oxidation catalyst, or DOC, is one of several components of Diesel engines that treat exhaust gas emissions before being released into the atmosphere(DOC Cleaning Near Me).  Untreated Diesel exhaust gas contains particulate matter, unburned Diesel fuel and carbon monoxide.  The Diesel oxidation catalyst (DOC) is the first of the three main components: Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF) and lastly the Diesel Selective Catalytic Reduction (SCR).  They all play a vital role in the treatment of the exhaust gas from Diesel engines. DOC Cleaning Near Me.


The Diesel Selective Catalytic Reduction (SCR) is especially important as it protects and ‘optimizes’ the exhaust gas making it more treatable by the Diesel Particulate Filter (DPF) and Diesel Selective Catalytic Reduction (SCR) that come next in the chain of emission control devices.


The specific job of the Diesel oxidation catalyst (DOC) is to convert carbon monoxide and hydrocarbons into carbon dioxide and water.  They use a catalyst material that heats up from exhaust gas. Temperature which causes a chemical reaction that converts. Polluting carbon monoxide into carbon dioxide and water.  Catalyst material is from the ‘platinum’ family of metals.  The Diesel oxidation catalyst (DOC), and other emissions control devices require cleaning, maintenance, and sometimes replacement.

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Does a Diesel Oxidation Catalyst (DOC) need to be cleaned?


Because Diesel engines physically push exhaust through the Diesel oxidation catalyst (DOC), it accumulates soot and other particulate matter.  Although the exhaust gas temperature will burn off some of this, the Diesel oxidation catalyst (DOC) can eventually become clogged and need to be cleaned.  The catalyst material will also fail to convert carbon monoxide to carbon dioxide if the platinum metals are covered in layers of soot and particulate matter.  A clogged Diesel oxidation catalyst (DOC) can result in Diesel engines not running efficiently. Such as poor fuel economy or increased exhaust gas temperature.  Diesel oxidation catalyst’s (DOC) can be cleaned. In a machine similar to that which cleans a Diesel particulate filter (DPF).  It is normally a fast process and can be handled at our facility. Just search DOC Cleaning Near Me.



Cummins Filtro de particulas DOC DPF


More Information on Diesel Oxidation Catalyst (DOC)


At 30 Minute DPF Clean, we are experts on running and maintaining Diesel engines to achieve optimal performance and efficiency.  If you have questions about running clean Diesel exhaust, or any other Diesel engine questions, let our friendly and knowledgeable staff answer them.  Conveniently located just minutes outside Philadelphia, DOC Cleaning Near Me. 30 Minute DPF Clean is here to help and educate people just like you.  Our state-of-the-art facility and equipment cleans Diesel filters while you wait, walk-ins welcome!


DOC Cleaning Near Me

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