Direct methane-to-ethylene conversion in a nanosecond pulse discharge

© 2018 Elsevier Ltd We report that gas phase plasma-assisted non-oxidative methane coupling can lead to formation of ethylene as major product at ∼20% yield per pass. This is attained by using a nanosecond pulsed discharge (NPD) reactor, featuring rapid product quenching rates, (recyclable) hydrogen co-feeding (CH4:H2 = 1:1) and elevated pressures (5 bar) at which NPD is ignited.status: publishe