Surface Growth and Oxidation of Soot Particles under Flame Conditions

Abstract

Abstract Surface growth and oxidation of soot particles is investigated in premixed counter flow flames. Surface growth rates and soot oxidation rates can be evaluated from the measured appearance rates of soot and the calculated surface growth rates derived from the HACA-mechanism. The dependence of surface growth rates and soot oxidation rates on composition of the gas phase, temperature and “surface concentration” is discussed. A mechanism of soot oxidation accounting for the experimental findings is suggested.