Decomposition of n-hexane using a dielectric barrier discharge plasma

In this study, we investigated the decomposition characteristics of n-hexane by a dielectric barrier discharge (DBD) plasma. In order to accomplish this, the factors influencing these decomposition characteristics such as background gases (air, N-2, and He), residence time (1-10 s), initial n-hexane concentration (10-50 ppm), relative humidity (2.5%, 40%, and 70%), and power (50-80 W) were evaluated. As a result, the decomposition efficiency of n-hexane at N-2 atmosphere was found to be lower than those at air and He atmosphere. The removal efficiency of n-hexane was increased when the residence time, relative humidity, and power increased, and when the initial concentration decreased. The concentrations of CO, CO2, and aerosol increased as the specific energy density increased. However, the O-3 level increased up to a certain point, then decreased. Various hydrocarbons such as acetone, pentanal, nonanal, etc. were also detected as by-products and their decomposition and recombination pathways were suggested.

Automated summary

In this study, the decomposition characteristics of n-hexane by DBD plasma were investigated, showing different decomposition efficiencies under different atmospheres. The removal efficiency of n-hexane was found to increase with increasing residence time, relative humidity, and power, and decreasing initial concentration. Additionally, as the specific energy density increased, the concentrations of CO, CO2, and aerosol increased, while O3 levels initially increased but then decreased.