Reduced reaction schemes for methane, methanol and propane flames

摘要: Recently proposed elementary reaction schemes are systematically reduced to the smallest number of steps that is algebraically tractable and still provides a realistic flame structure. The reduction uses steady state assumptions for all intermediates other than H2, CO H-radical. Furthermore, relations O OH simplified by reatining only largest terms. For example methane there results quasi-global four-step mechanism, valid calculations ( I ) C H 4 + 2 = M V 3 rates these reactions explicit expressions in terms concentrations seven reactive species system. They contain kinetic data exclusively from original scheme includes C1- C2- chain. Similarly, methanol flames we obtain mechanism where first replaced − . propane fuel consumption occurs through two parallel 8 7 b 9 These represent oxidation channels via n propyl radical which procedes iso i 6 Numerical using Warnatz' program have been performed schemes. agreement with large high temperature hydrocarbon very good lean rich as far structure velocities concerned.