The MIRATECH DPF system reduces CO (50-96%) and HC (up to 90%), HAPs (up to 80%), and Particulate Matter (up to 95%).

The DPF acts as a filter that uses high-temperature silicon carbide blocks to trap particulate matter in the exhaust. As the gases containing the carbon particles accumulate, the device periodically heats the carbon causing it to ignite and burn off as water and carbon dioxide.

In order for the DPF to continually operate at optimal levels, regeneration (the process of burning off – or oxidizing – particulate matter that is trapped by the soot filter) is required .

There are two methods for regenerating a Diesel Particulate Filter:

• Passive Regeneration occurs when exhaust temperature reaches a point where the carbonaceous and soluble organic fraction (SOF) automatically oxidize. If a passive trap is catalyzed, this can occur at temperatures above 750 F, without catalyst this occurs above 950 F.

• Active Regeneration means external energy (not normally contained with the exhaust) is used to regenerate the filter.

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