Afterglow quenching in plasma-based dry reforming of methane: a detailed analysis of the post-plasma chemistry <i>via</i> kinetic modelling.

ABSTRACT: We have developed a kinetic model to investigate the post-plasma (afterglow) chemistry of dry reforming of methane (DRM) in warm plasmas with varying CO₂/CH₄ ratios. We used two methods to study the effects of plasma temperature and afterglow quenching on the CO₂ and CH₄ conversion and product selectivity. First, quenching via conductive cooling is shown to be unimportant for mixtures with 30/70 and 50/50 CO₂/CH₄ ratios, while it affects mixtures containing excess CO₂ (70/30) by influencing radical recombination towards CO₂, H₂ and H₂O, as well as the water gas shift reaction, decreasing the CO₂ conversion throughout the afterglow. This is accompanied by shifts in

SUBMITTER: Slaets J 

PROVIDER: S-EPMC11783141 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature