期刊
PLASMA PROCESSES AND POLYMERS
卷 20, 期 4, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ppap.202200175
关键词
CH4; CO2; dry reforming; gliding arc; plasma kinetics; reaction mechanism
This study investigates the role of CH4/CO2 ratio on gliding arc-based dry reforming of methane (GA-DRM) through kinetic simulation. The results show that the CH4/CO2 ratio regulates the main reaction pathways and product selectivities in GA-DRM.
Aiming at understanding the role of CH4/CO2 ratio on gliding arc (GA)-based dry reforming of methane (GA-DRM), the GA-DRM at CH4/CO2 ratio range of 0.11 to 1 was studied with kinetics simulation. The radicals of H, OH, and CH3 are identified as the main reactive species to induce the reactant conversion and product formation in GA-DRM. The increase of CH4/CO2 raises the concentrations of H and CH3 and reduces the OH concentration. Subsequently, the CH4/CO2 ratio regulates the main reaction routes of GA-DRM. The dehydrogenation coupling reaction enhances with CH4/CO2 and thus raises the selectivities of C2 hydrocarbons. The OH-induced reactions for OH to H2O weaken with CH4/CO2, thereby increasing the H-2 selectivity.
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