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Production of Hydrogen from Methane Using a 3 Phase AC Glidarc Discharge  

Kim, Seong-Cheon (BK21 Team for Hydrogen Production Department, Environmental Engineering, Chosun University)
Chun, Young-Nam (BK21 Team for Hydrogen Production Department, Environmental Engineering, Chosun University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.18, no.2, 2007 , pp. 132-139 More about this Journal
Abstract
Popular techniques for producing synthesis gas by converting methane include steam reforming and catalyst reforming. However, these are high temperature and high pressure processes limited by equipment, cost and difficulty of operation. Low temperature plasma is projected to be a technique that can be used to produce high concentration hydrogen from methane. It is suitable for miniaturization and for application in other technologies. In this research, the effect of changing each of the following variables was studied using an AC Glidarc system that was conceived by the research team: the gas components ratio, the gas flow rate, the catalyst reactor temperature and voltage. Glidarc plasma reformer was consisted of 3 electrodes and an AC power source. And air was added for the partial oxidation reaction of methane. The result showed that as the gas flow rate, the catalyst reactor temperature and the electric power increased, the methane conversion rate and the hydrogen concentration also increased. With $O_2/C$ ratio of 0.45, input flow rate of 4.9 l/min and power supply of 1 kW as the reference condition, the methane conversion rate, the high hydrogen selectivity and the reformer energy density were 69.2%, 36.2% and 35.2% respectively.
Keywords
hydrogen yield; reforming; partial oxidation; glidarc; plasma;
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