Size/molecular weight distribution in the nucleation mode of flame-generated soot (original) (raw)

AI-generated Abstract

The study investigates the molecular weight distribution of flame-generated soot collected from fuel-rich premixed hydrocarbon flames using size exclusion chromatography (SEC) combined with UV-Visible spectroscopy. Existing methodologies primarily analyze soot with molecular weights below 10^5 u; this research extends this range utilizing a novel non-porous SEC column, achieving accurate measurements beyond 10^10 u. Results demonstrate distinct molecular weight profiles across different fuels (ethylene, cyclohexane, heptane, benzene), revealing changes in soot properties such as size and distribution patterns during soot formation.