Open AccessEffect of gas pressure and pulse duration on dry reforming of methane in nanosecond spark discharge
Author(s) -
I. E. Filatov,
D. L. Kuznetsov,
V. V. Uvarin
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1393/1/012081
Subject(s) - methane , nanosecond , pulse duration , materials science , voltage , pulse (music) , corona discharge , electric discharge in gases , analytical chemistry (journal) , pulsed power , energy conversion efficiency , atmospheric pressure , chemistry , atomic physics , optoelectronics , optics , electrical engineering , laser , physics , meteorology , environmental chemistry , organic chemistry , engineering
This paper presents the results of experiments on dry reforming of methane under the action of a nanosecond spark discharge at medium pressures up to 5 atm. High-voltage pulse generators with pulse length of 1 to 15 ns and voltage pulse amplitude of 50 to 200 kV were used to power the discharge. It was demonstrated that the spark discharge efficiency significantly exceeds the corona and diffuse discharge efficiency. With increasing pressure, the methane conversion value decreases, and the specific energy consumption increases. As the pulse length increases, the conversion value increases due to the increase in the energy deposition in the gas. The lowest energy consumption for the conversion of a methane molecule was 20 eV per molecule at pressure of 1 atm and discharge pulse length of 15 ns.