Numerical model of hydrocarbon oxidation kinetics in a reactor with barrier discharge has been proposed by the example of cyclohexane oxidation reaction. The results of calculations with the use of barrier discharge surface model showed that electron energy and other discharge characteristics in pure oxygen and in the mixture of oxygen with cyclohexane vapors slightly differ that allowed using a simplified model of homogeneous discharge for simulating cyclohexane oxidation reaction. The results of calculation showed good fit with the experimental data.
The oxidation of n-pentane, n-hexane, octane and cyclohexane and their mixtures in a barrier discharge reactor has been studied. Under the conditions of an efficient removal of the reaction products from the discharge zone a high selectivity of oxidation processes is reached. The oxidation results in the formation of alcohols, aldehydes and ketones possessing the same atom numbers as the initial hydrocarbons. The main products of cyclohexane oxidation are represented by cyclohexanol (52,12 wt %) and cyclohexanon (47,88 wt %). The oxidation of model mixtures of hydrocarbons leads to the formation of the same products that from the individual hydrocarbons. It has been shown that the atomic oxygen reacts first of all with the hydrocarbon molecules in the gas phase, and as they are consumed, the hydrocarbon molecules at the gas-liquid boundary come into the reaction