Feasibility test of a concurrent process for CO2 reduction and plastic upcycling based on CO2 plasma jet

•Concurrent process for CO2 reduction and plastic upcycling by CO2 plasma.•Chemical upcycling of low-density polyethylene to C1 and C2 gases.•Syngas to CO2 ratio was achieved up to 32 % in batch scale reactor.•Promising approach for an efficient and scalable CO2 utilization.