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Heat Transfer Research
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ISSN Print: 1064-2285
ISSN Online: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018016991
pages 1119-1129

SYNGAS PRODUCTION IN METHANE DECOMPOSITION IN THE PLASMA OF ATMOSPHERIC PRESSURE HIGH-VOLTAGE DISCHARGE

Sulaiman I. Al-Mayman
Energy Research Institute (ERI), King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia
Meshal S. Al-Johani
Energy Research Institute (ERI), King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia
Kirill O. Borisevich
Advanced Research and Technologies LLC, 2a Tolbukhin Str., room 7, Minsk, 220012, Belarus
Abdullah A. Al-Musa
Energy Research Institute (ERI), King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia
Naif M. Al-Abbadi
Energy Research Institute (ERI), King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia
Аndrey V. Krauklis
Advanced Research and Technologies LLC, 2a Tolbukhin Str., Room 7, Minsk, 220012, Belarus
Pavel G. Stanovoi
Advanced Research and Technologies LLC, 2a Tolbukhin Str., Room 7, Minsk, 220012, Belarus

ABSTRACT

The paper describes the conditions of methane conversion in high-voltage discharge plasma of atmospheric pressure and a setup for experimental studies of the process. Volt–ampere characteristics of the discharge and dependences of the process key parameters on the energy inputs and the equivalence ratio were obtained. Modes of process implementation with maximum hydrogen yield (260.6 L/h) and minimum energy consumption (16.9 kJ/L) were selected. The maximum hydrogen concentration in the gaseous products was 34.4% at a methane–air mixture conversion degree of 98.9%. The experimental research was conducted at energy inputs in a range from 0.54 to 2.09 kW and the equivalence ratio 3.0 < φ < 4.5 for the three flow rates of the working mixture –521, 605, and 670 L/h.