Hydrogen Production from Methane Through Pulsed DC Plasma

Hydrogen Production from Methane Through Pulsed DC Plasma A non-equilibrium warm plasma reactor has been constructed for methane reforming and hydrogen production. The discharge reactor was derived with 20 kV pulsed DC power supply with pulse duration of 4 µs, pulse frequency of 33 kHz. Electrical and optical characterizations of the reactor have been investigated. The electrical characteristics of the discharge revealed that the discharge was ignited by streamer to glow transition. The optical characteristics of the discharge revealed that the discharge was found to be strongly non-equilibrium with rotational temperature (Trot) of 2873 K and vibrational temperature (Tvib) of 12,130 K. The Stark broadening of the emitted Hα line profile was used to deduce the electron density, which was found to be in the order of 1016 cm−3. Methane conversion was strongly dependent upon the applied voltage and the methane flow rate. In general, under the specified operating condition, a methane conversion percentage of about 92% and a maximum hydrogen selectivity of 44.6% have been achieved. Specific energy consumption of methane conversion (SEC) and specific energy requirements for hydrogen formation (SER) of 5 eV/molecule has been achieved simultaneously with a maximum hydrogen production energy cost of about 3.8 µg/J. Finally, the decomposition of methane gas resulted in the deposition of an important byproduct namely graphene oxide. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plasma Chemistry and Plasma Processing Springer Journals

Hydrogen Production from Methane Through Pulsed DC Plasma

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Springer US
Copyright © 2017 by Springer Science+Business Media, LLC
Chemistry; Inorganic Chemistry; Classical Mechanics; Characterization and Evaluation of Materials; Mechanical Engineering
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