N-dodecane partial oxidative reforming in gliding arc discharge plasma and kinetic model

Abstract

A gliding arc discharge (GAD) plasma reactor was developed for partial oxidative reforming (POR) H2 production. Air was used as carrier gas and oxidant. The effects of the molar ratio of oxygen to carbon(O/C), input power and residence time on POR reaction were investigated. Under O/C ratio 0.75, input power 35 W and residence time 35 s, the energy yield of H2 was 68.7 L/kWh and the main products were H2 and CO. The GAD plasma was diagnosed with OES. A zero-dimensional(0-D) reaction kinetic model of was established. The simulation results were consistent with the experimental ones. The mechanism of C12H26 conversion, the generation and consumption of products were discussed in detail. The experiment results were in good agreement with the simulated ones. The primary path of n-dodecane conversion was the direct cracking reaction and H2 mainly derived from the recombination reaction between H atom and CH4, C3H6 and C2H6.