大气压氩等离子体裂解正癸烷实验研究

We experimentally researched the potential of pyrolyzing aviation kerosene by dielectric barrier discharge to increase the H₂ selectivity of decomposed products. The decompition experiment of n-decane, the single alternative fuel for aviation kerosene, was carried out under the argon environment with parallel plate dielectric barrier discharge cracker excited by microsecond pulsed power. By changing on-load voltages and discharge frequencies, the concentrations of different components were acquired, the effect of specific input energy on H₂ selectivity was analyzed, and part of the reaction paths of plasma decomposition of n-decane was identified. The results demonstrate that, under different conditions, ethylene and H₂ have higher concentrations among all products; the concentrations of components increase with the rise of on-load voltage and discharge frequency; the specific input energy influences the H₂ selectivity principally through discharge frequency, and furthermore, H₂ selectivity will be stronger as discharge frequency increases.