CO2 Reforming of CH4 by Atmospheric Pressure ac Discharge Plasmas

Methane conversion using a high‐frequency pulsed plasma: Discharge features

“…AC and DC corona discharges, dielectric-barrier discharge, arc plasma, and the combination of microwave plasma and catalysts have been reported to produce acetylene, ethylene, hydrogen, methanol, and other liquid products (Wan, 1986;Mallinson et al, 1987;Bhatnagar and Mallinson, 1995;Liu et al, 1996;Thanyachotpaiboon et al, 1998;Onoe et al, 1997;Okumoto et al, 1998;Suib and Zerger, 1993;Marun et al, 1999;Eliasson et al, 2000;Yao et al, 2000d). Recently, methane reforming with CO, using plasmas, which may contribute to effective utilization of methane and reduction of greenhouse gas CO, emission, has been reported (Gesser et al, 1997;Bromberg et al, 1998;Larkin et al, 1998;Zhou et al, 1998;Huang et al, 2000;Yao et al, 2000b).…”

Different Tools on Multi-Objective Optimization of a Hybrid Artificial Neural Network – Genetic Algorithm for Plasma Chemical Reactor Modelling

“…The most significant influence of the plasma was observed at low temperatures (Liu et al, 2001b) at which the catalysts were not active. At higher temperatures the catalysts became active; nonetheless, the plasma catalytic effect was still observed (Huang et al, 2000).…”

“…Some previous researchers implied that the synergistic effect of catalysis-plasma only occurred at high temperature where the catalyst was active. Huang et al (2000) and Heintze & Pietruszka (2004) pointed out that the product selectivity significantly improved only if the temperature was high enough for the catalytic material to become itself active. Zhang et al (2001) also claimed that the reactor wall temperature did not significantly affect the reaction activity (selectivity) over zeolite NaY catalyst under DBD plasma conditions at the temperature range tested (323-423 K).…”

Direct Conversion of Methane into Methanol and Formaldehyde in an RF Plasma Environment I: A Preliminary Study

“…Energetic electrons are generated using either a corona, a pulse discharge, a microwave discharge, or a dielectric-barrier discharge (Suib et al 1993;Liu et al 1999;Huang et al 2000). The products of methane conversion obtained using nonthermal plasma are mainly ethylene, acetylene, hydrogen, carbon monoxide, carbon dioxide, and some oxygenates.…”