Large molecules,radicals lions,and small soot particles in fuel-rich hydrocarbon flames part II.aromatic radicals and intermediate PAHs in a premixed low-pressure naphthalene/oxygen/argon flame

摘要

A fuel-rich,near-sooting,low-pressure,premixed haphthalene/oxygen/argon flame has been analyzed for condensible raction intermediates,mainly mono-and polycylclic aromatic hydrocarbons (PAHs),and for frree radicals.Samples werr etaken through a nozzle beam that was expanded and condensed together with the radicla scavenger dimethyldisufide in a cold trap.Product separation wasdone wikth gas chromatography (GC) equipped iwth a mass sepctrometer and a special detector for radical scaverngin products.