Abstract
Methane conversion using an electric discharge has been studied for many years. Recently, many research groups have developed a high-frequency pulsed plasma reaction for methane conversion to higher hydrocarbons and synthesis gas. The CO2 reformation of methane to synthesis gas has also attracted considerable interest as a method of utilization of the greenhouse gases, CO2 and CH4, which occupy most of man-made greenhouse gases. In this study, the influence of pulse polarity of the pulse power supply on methane and carbon dioxide conversions has been investigated using a cylindrical-type dielectric barrier discharge (DBD) reactor. For this purpose, two kinds of power supply were compared, that is, a bipolar pulse power supply and a unipolar pulse power supply. The input voltage and the power frequency were used as operating variables. The energy efficiency of the bipolar pulse power was compared with that of the unipolar pulse power for the CO2 reformation of methane using DBD. Increasing the voltage and ...
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