Converting hydrocarbons can make the fossil fuel industry more flexible in responding to market changes by producing various products to meet market demands. Efficient, clean, and flexible plasma processes are a highly promising technology for hydrocarbon processing and conversion. In this study, the conversion of n-hexadecane was investigated using ethanol solution-assisted pulsed liquid-phase discharge plasma. The effects of recycle and batch devices and discharge frequency on feedstocks conversions and product yields were examined. The use of a recycle device facilitated the conversion of n-hexadecane. Adjusting the frequency enabled the regulation of products concentration. High discharge frequency increased the cracking of n-hexadecane and promoted further cracking of reactants into smaller molecular products, boosting the proportion of H(2 )and C-2 hydrocarbons, and enhancing the yield of gases and light hydrocarbons. Reducing the frequency favored polymerization reactions, resulting in the formation of heavy hydrocarbons. At a frequency of 10.2 kHz, the recycle device achieved a gas production rate of 112.1 mL/min and a gas production efficiency of 87.5 mL/kJ. With an SEI of 3202 kJ/L, the conversion of n-hexadecane was 15.5 %, the yield of light hydrocarbons was 717.0 mg, and the light product selectivity was 97.1 %. This study offers an efficient approach for the processing and conversion of hydrocarbons in the fossil fuel industry.
