THE OXIDATION OF ETHYLENE-OXIDE IN A JET-STIRRED REACTOR AND ITS IGNITION IN SHOCK-WAVES

The oxidation of ethylene oxide (C2H4O) has been investigated in a jet -stirred reactor at high temperature (800-1150 K) in the pressure rang e 1 to 10 atm for several equivalence ratios (0.5 less than or equal t o phi less than or equal to 2). The concentration profiles of O-2, H-2 , CO, CO2, CH4, C2H2, C2H4, C2H6, C3H6, C3H8, CH3HCO, and C2H4O were o btained by probe sampling and gas-chromatographic analysis. Ethylene o xide oxidation in these conditions was modeled using a comprehensive k inetic reaction mechanism. The proposed mechanism is able to reproduce experimental data obtained in our high-pressure, jet-stirred reactor and also ignition delays measured in a shock tube (1070-1330 K, 5-15 a tm, 0.36 less than or equal to phi less than or equal to 3.2). The sam e mechanism has also been validated for the oxidation of CH4, C2H2, C2 H4, C2H6, CH3HCO, C3H6, C3H8, 1-butene and n-butane, as well as mixtur es of CH4 with C2H6 and/or C3H8 under the same conditions.