Fig. 6. Investigation of reaction path of methane oxidation over the 0.1% Fe/ZSM-5 catalyst. (a) Time-on-line profile for the reaction products of methane oxidation over the 0.1% Fe/ZSM-5. Reaction conditions: T = 50 °C, PCH4 = 30 bar, H2O2 = 0.5 M, V = 80 mL, catalyst = 0.3 g, rpm = 1500. (b) Time-on-line profile for the reaction products of methanol oxidation over the 0.1% Fe/ZSM-5. Reaction conditions: T = 50 °C, VMeOH = 0.2 mL, PN2 = 30 bar, H2O2 = 0.5 M, V = 80 mL, catalyst = 0.3 g, rpm = 1500. (c) Proposed reaction scheme for the oxidation of methane in the H2O2-based heterogeneous system.
