Hydrogen production from methane conversion in a gliding arc

Abstract

Until now, the major problem of methane conversion is to break the very strong C-H bond. It is possible by employing some catalytic methods. However, the formation of carbon powder diminishes the catalytic performance. The use of a gliding arc, described in this work, has two objectives: the hydrogen production and other syngas such as acetylene, and the treatment of the green house gas methane. A good approximation model describing the chemical processes concerning the methane decomposition is described, first by the interaction of key radicals such as CH3 and H, followed by chemical reactions involving other hydrocarbons. Furthermore, the experimental results demonstrated the ability of the gliding arc to accelerate chemical reactions at low temperatures while decreasing energetic cost.

Plasma activation of methane for hydrogen production in a N2 rotating gliding arc warm plasma: A chemical kinetics study

“…In this respect, plasma technology, and more specifically atmospheric pressure non-thermal plasma, is gaining increasing attention for hydrogen production from methane activation [4,7,[10][11][12][13]. Non-thermal plasma offers numerous highly reactive species (e.g., energetic electrons, radicals, and excited species) that are responsible for the initiation and propagation of chemical reactions whereby expensive and impurity vulnerable catalyst can be eliminated, while maintaining a limited energy cost due to the relatively low gas temperature and good chemical selectivity [14][15][16][17][18].…”

Low-current discharge plasma jets in a gas flow. Application of plasma jets

“…The authors of [56] expect that the regeneration of heat in the reactor may reduce energy consumption to 15-20 MJ/kg H 2 . The efficiency of combining systems with an arc discharge and discharges of other types, in particular, a gliding arc electrode configuration, with different catalysts was also studied in [53,[59][60][61].…”

“…Garduno et al [53] used a source with a 23-kHz pulse frequency. Alternating current supply does not change principally the pattern of primary plasma chemical processes, though it complicates, to a certain degree, visualization and interpretation of the physics involved.…”

“…Another type of discharge whose properties are significantly affected by a gas flow is the so-called gliding arc [46][47][48][49][50][51][52][53]]. An electrode system generating gliding arc and its typical power supply circuit are presented in Fig.…”

Preface to Special Topic: Selected Papers From the Tenth International Congress of the Mexican Society of Hydrogen—Renewable Energies, TOLUCA, MEXICO, 2010

“…In "Hydrogen Production from Methane Conversion in a Gliding Arc," Garduño et al 2 describe the application of gliding arc technology for the decomposition of methane into hydrogen and carbon, thus eliminating CO 2 emissions.…”