Effect of Fuel Properties on Diesel PM Components

In this study, compositions, size distributions and activation energy in oxidation of diesel PM were investigated. Benzene (C₆H₆) was mixed to diesel fuel as a promoter of PM formation, and further, ferrocene (Fe(C₅H₅)₂) was added as a promoter for oxidation processes during in-cylinder combustion and after-treatment. The effect of those additions on the PM characteristics was discussed on the basis of measured results such as SOF and dry-soot ratio in PM, primary and aggregate particle size distributions of PM, activation energy of PM oxidation, and PM components with elemental analysis. As a result, it was shown that ferrocene had special effect on the PM size distribution and the activation energy.