An Investigation of Soot-and PAH-formation Based on Chemical Equilibrium

概要

論文の詳細を見る
To explore the formation of polycyclic aromatic hydrocarbons (PAH) and soot during combustion, equilibrium compositions of fuel-rich mixture at elevated temperatures have been obtained based on thermodynamic considerations. In the calculations, only gaseous intermediates have been included, while solid carbon has been excluded on the assumption that the formation of carbon particles is much slower than that of other species. It has been shown that major intermediates before sooting are PAH and acetylene. At the atmospheric pressure, a maximum PAH concentration appears at about 1400K, while the acetylene concentration increases with temperatures above 1200K. A comparison with the experimental results of a heated flow reactor suggests that the present prediction explains the formation of SOF and dry soot during thermal decomposition. Further, a discussion is made of the effects of the C/H ratio and enthalpy of formation of fuel on PAH and soot.
一般社団法人日本機械学会の論文