ACETYLENE OXIDATION IN A JSR FROM 1-ATM TO 10-ATM AND COMPREHENSIVE KINETIC MODELING

Acetylene oxidation in a jet-stirred reactor has been investigated at high temperature (800-1100 K) in the pressure range 1 to 10 atm. Molec ular species concentration profiles of H-2, CO, CO2, CH4, C2H2, C2H4, C2H6 were obtained by probe sampling and GC analysis. Acetylene oxidat ion was modeled using a comprehensive kinetic reaction mechanism inclu ding the most recent findings concerning the kinetics of the reactions involved in the oxidation of C-1-C-6 hydrocarbons. The proposed mecha nism is able to reproduce experimental data obtained in our high-press ure jet-stirred reactor, ignition delay times measured in shock tube, atmospheric pressure C2H2/Air flame speeds, and C2H2/O-2/Ar premixed d ame structures obtained at low pressure on flat flame burners. The mec hanism has also been used successfully to represent the kinetics of th e oxidation of CH4, C2H4, C2H6, C3H6, C3H8, mixtures of CH4 with C2H6 and/or C3H8 in the same conditions.