Exhaust Engineering Excellence

Eminox DOC sample
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Diesel Oxidation Catalyst

The diesel oxidation catalyst, sometimes called a 2-way oxidation catalyst, removes up to 90% of carbon monoxide and hydrocarbons. It can also reduce diesel particulate matter by up to 30%, though typically it is in the region of 8-10%.

System performance

DOC System Performance chart

It is an extremely cost effective, reliable and flexible approach to reducing diesel exhaust emissions. Because of the relatively small size of the oxidation catalyst, the complete exhaust system is usually a direct replacement for the original which simplifies design and fitment, lowering the cost.

It is a ‘fit and forget’ solution requiring no maintenance, and housed in stainless steel it has a long life expectancy. The system does not require ultra low sulphur diesel and is resistant to ash produced by the burning of engine oil, making it suitable for a wide variety of vehicles or where ultra low sulphur diesel (50 ppm) is not available.

 

Related topics:

How it works  |  Glossary of terms

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