PAHs Formation Routes in the n-Heptane Laminar Flow Premixed Flame

Abstract

A detailed reaction mechanism is adopted to simulate n-heptane laminar premixed flame in this paper. The reaction mechanism comprises 108 components and 572 elementary reactions. The main reactants (O2,n-C7H16), reaction products (CO2,CO,H2,H2O), intermediate products (CH4, C2H4, C2H2, C3Hx) and the concentration distribution of PAHs in the flame are analyzed in the numerical method. The numerical results are in good agreement with the experimental results, which states that the mechanism can predict PAHs in the n-heptane flame. In this paper, the sensitivity and reaction flow analysis method is used to analyze the numerical results and the PAHs formation routes in n-heptane laminar flow premixed flame are obtained.