Optimization of NH3 Decomposition by Control of Discharge Mode in a Rotating Arc

Energy efficient dry reforming process using low temperature arcs

“…Rotating arc discharges have been used as an efficient tool for reforming fuel as well as plasma‐assisted reactions . The arc discharge mechanism can be divided into four different modes . In Mode I, a gliding arc is rapidly developed (spiral extension) from the closest gap between the electrodes to the end tip of the conical high voltage electrode, and the process is then repeated.…”

Methane to acetylene conversion by employing cost-effective low-temperature arc

“…In the course of arc generation, an extended arc is anchored at the high-voltage electrode tip and expands into the earthed straight reactor tube. The capability of length control for extension of the arc is what the rotating arc differs from other types of arc generation [20,24,25]. Extension of arc string enables more flexible control of temperature condition in wide range.…”

“…For the expansion of the arc string, a contracting part (diameter from 40 mm to 12 mm) and a straight tube (50 mm length with constant diameter of 12 mm) are connected to the basic rotating arc reactor. The procedure for generation and development of the arc in a rotating arc reactor can be found in the literature [20][21][22][23][24]. The contracting part and straight tube are designed to promote heat transfer and fixation of the arc string length.…”

“…In general, the condition of thermal stability for sustaining the arc can be expressed as in Eq. (23), which requires that power delivered by the arc string is less than heat loss [24].…”

Hydrogen production via the Kværner process and plasma reforming

“…The most important difference between the rotating arc and the gliding arc is that there are several different modes of arc generation (Lee, Kim, Kang, Jo, & Song, 2014). By applying arc control, the length of the arc column can be fixed without expansion.…”