Lubricant-derived ash and the diesel particulate filter: from fundamental, nanoscale measurements to system-level considerations

Carl Justin  Kamp, Massachusetts Institute of Technology (MIT)

This talk will review efforts in furthering the understanding of interactions between lubricant-derived ash and the diesel particulate filter (DPF). A wide range of experimental and modeling efforts have been developed at MIT’s Sloan Automotive Laboratory to investigate the effects of ash on the functionality, durability and performance of the DPF. Unique analytical tools and methods have been utilized to quantify ash properties, ash-substrate and ash-washcoat interactions, and ash transport/distribution throughout various filter sizes/materials. A wide range of lab-generated and on/off-road filters have been investigated in a multiscale context, providing relevant data for modeling efforts.