Abstract
The kinetics of methane oxidation in a jet-stirred reactor was modeled using a comprehensive kinetic reaction mechanism including the most recent findings concerning the kinetics of the reactions involved in the oxidation of C 1 -C 4 hydrocarbons. The computed results are discussed in terms of pressure and equivalence ratio (o) effects on methane oxidation. The previously validated mechanism is able to reproduce experimental data obtained in our high-pressure jet stirred reactor (concentration profiles for CH 4 , CO, CO 2 , H 2 , C 2 H 4 , C 2 H 6 , et C 2 H 2 ; 900 ≤ T/K ≤ 1300 ; 1 ≤ P/atm ≤ 10 ; 0.1 ≤ o ≤ 2) and methane ignition delay times measured in shock tube (800 ≤ T/K ≤ 2000 ; 1 ≤ P/atm ≤ 13 ; 0.1 ≤ o ≤ 2). It is also able to reproduce H and O atoms concentrations measured in shock tube at ≈ 2 atm. Burning velocities of methane in air between 1 and 3 atm and methane-air flame structures were also modeled. The same detailed kinetic mechanism can also be used to model the oxidation of ethane, ethylene, propene, and propane in similar conditions.
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