Ceramic Diesel Particulate Filters

These openings trap soot on the channel walls and prevent it from exiting the exhaust tail pipe.

Ceramic diesel particulate filters. A diesel particulate filter dpf is located in the exhaust system of your diesel vehicle and is designed to remove soot and diesel exhaust matter from your exhaust. The introduction of dpf in passenger cars in europe in 2000 was a real breakthrough from both a scientific and a commercial point of view. It has a series of small honeycomb shaped openings covered in palladium or platinum. With an optimal diesel particulate filter dpf soot emissions may be decreased to 0 001 g km or less.

For example a high sulphur content diesel produces more particles. A diesel particulate filter or dpf is an exhaust aftertreatment device that traps particulate matter such as soot and ash. Dpf is a device designed to remove diesel particulate matter or soot from the exhaust gas of diesel engine vehicles the dpf filters first trap particulates and then use a catalytic technology to continuously burn them at normal diesel operating exhaust temperatures. Corning duratrap particulate filters offer monolithic design and advanced material compositions to optimize pressure drop filtration efficiency durability and system cost.

The quality of the fuel also influences the formation of these particles. Twenty five years of diesel particulate filter dpf developments have shown that ceramic materials are well suited candidates to fulfill the harsh requirements of exhaust after treatment. New particulate filters can capture from 30 to greater than 95 of the harmful soot. These particulate filters are designed to trap soot or particulate matter from diesel or gasoline exhaust emissions in a variety of light duty and heavy duty applications.

A dpf typically uses a substrate made of a ceramic material that is formed into a honeycomb structure.