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Efficient Use of \hbox {CO}_{2} Reforming of Methane With an Arc-Jet Plasma

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3 Author(s)
Nakyung Hwang ; Dept. of Environ. Syst. Eng., Univ. of Sci. & Technol., Daejeon, South Korea ; Young-Hoon Song ; Min Suk Cha

Carbon dioxide reforming of methane has drawn the attention of many researchers for years, because of both its theoretical yield of hydrogen to carbon monoxide, i.e., H2/CO = 1, and the use of greenhouse gas CO2 . Although catalytic processes have been widely investigated, plasma-based techniques were recently considered, because catalytic processes have problems, such as coking and slow start-up time. However, since there is a lack of concrete information about plasma-induced processes, we systematically tested a dry reforming of methane by using an arc-jet plasma reactor. The effects of supplied power for plasma generation, CO2/CH4 ratio, O2 addition, and the amount of CH4 + CO2 in the reactant were experimentally investigated in nitrogen balance. As a result, the H2/CO ratio of a product can be controlled in the range of 0.8-2.5, and the direction for efficient use of the dry reforming process was proposed. Detailed mechanism and characteristics of the dry reforming of methane were also discussed.

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Plasma Science, IEEE Transactions on  (Volume:38 ,  Issue: 12 )