高温場滞在時間がフラーレン・PAHの燃焼生成に及ぼす影響

概要

論文の詳細を見る
Fullerenes were generated and observed in the combustion processes of hydrocarbon fuel under low pressure conditions although the fullerene formation mechanism from PAHs in fuel rich hydrocarbon flames under low pressure conditions has not been clarified yet. In the present study, the effects of the residence time in the high temperature reaction field were investigated experimentally and the effects on the contents of fullerenes and PAHs were discussed with changing the residence time in the high temperature reaction field. The experimental results showed that the contents of fullerenes as well as PAHs in total soot collected from the flue gas decreased with the increase of the residence time in the range from 800 to 1500℃. On the other hand, the contents of fullerenes as well as PAHs in total soot decreased with the increase of the residence time over 1500℃ because the total PAHs contents in the flue gas increased under the present experimental conditions. It is essential for the high fullerene yields to realize the optimal residence time from 800 to 1500℃ as well as that over 1500℃ in the combustion process.