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The Dominant Pathways for the Conversion of Methane into Oxygenates and Syngas in an Atmospheric Pressure Dielectric Barrier Discharge

“…Modeling results on the plasma chemistry in CH 4 /O 2 and CH 4 /CO 2 mixtures reported in the literature mostly originate from zero-dimensional simulations, largely based on specific empirical input, which is only valid for the experimental setup under study. ,,,− ,,,− Zhou et al used a semiempirical kinetic model to simulate the accumulated chemical action of many microdischarges in CH 4 /O 2 and CH 4 /CO 2 gas mixtures. Besides the densities of the inlet gases and main products, the pathways for formation of methanol in CH 4 /O 2 and syngas in CH 4 /CO 2 were briefly discussed.…”

Synthesis of Oxygenates and Higher Hydrocarbons Directly from Methane and Carbon Dioxide Using Dielectric-Barrier Discharges: Product Distribution

“…Regarding the difficulty in the activation of methane conventionally, gas discharge plasmas have been investigated extensively these years for methane conversion to C 2 hydrocarbons, − to oxygenates, − to liquid fuels, , and to syngas. − The plasmas operated at low pressure, like microwave discharge, were applied for methane conversion at the very beginning. Then the atmospheric pressure plasmas, like corona discharge, − , gliding arc, , plasma torch, and dielectric-barrier discharge, ,,− ,, were developed. One of the advantages in plasma methane conversion is that reactions can be operated at low gas temperature (as low as room temperature), while the methane conversion is significantly high (even more than 60% for some cases).…”

“…Such plasma methane conversions mostly employ a co-reactant or a dilution gas to avoid the possible carbon deposit. Oxygen, ,,,− carbon dioxide, ,,− ,, nitrogen monoxide, hydrogen, , or helium 20,28 has been used as the co-reactant or dilution gas. It is very promising to use carbon dioxide as the co-reactant for plasma methane conversion since carbon dioxide can provide extra carbon atoms for methane conversion, while carbon dioxide also serves as a better oxidant, compared to oxygen or air.…”

Localized growth of materials from amorphous hydrogenated carbon by barrier-discharge treatment of benzene vapor-argon mixture

“…In our case, the role of spherical particles can be played by aerosol particles generated by the action of BD on benzene vapor. There are reports in the literature on the aerosol formation effect as a result of barrier dis charge stimulated phase transition of organic and inorganic vapors [9][10][11], including benzene vapor in air [11]. We also visually observed the formation of aerosol in a mixture of benzene and argon at the reac tor outlet, although its composition and properties were not investigated.…”