The process of burning off accumulated soot in the DPF is called what?

The process of burning off accumulated soot in the DPF is called what?

• A. Regeneration
• B. Filtration
• C. Adsorption
• D. Oxidation

Answer: (A)

Regeneration is the process where the diesel particulate filter burns off the accumulated soot to restore its ability to trap particulates. When the exhaust heats up enough, the soot inside the filter oxidizes and turns into ash and gases, freeing the filter’s passages so exhaust can flow freely again. This can happen passively during normal high-temperature operation or actively when the system initiates a cleaning cycle. Filtration describes simply the trapping action, adsorption isn’t the mechanism here, and oxidation is the chemical reaction that occurs during the regeneration process.

Regeneration is the process where the diesel particulate filter burns off the accumulated soot to restore its ability to trap particulates. When the exhaust heats up enough, the soot inside the filter oxidizes and turns into ash and gases, freeing the filter’s passages so exhaust can flow freely again. This can happen passively during normal high-temperature operation or actively when the system initiates a cleaning cycle. Filtration describes simply the trapping action, adsorption isn’t the mechanism here, and oxidation is the chemical reaction that occurs during the regeneration process.