Study on a production of hydrogen depending ambient temperature using a nitrogen DC arc plasma

Solid waste treatment and disposal are global challenges. Processes for the effective waste management include recycling, recovery, reuse, prevention, and disposal. Nowadays waste is considered a promising renewable resource. It is the conversion of waste to energy such as combustion, gasification, including refining the recovery of waste heat, waste oil, and plastic pyrolysis. DC arc plasma sources have been used for waste treatment because they have the advantages of easy operation, low cost, and thermal processes with a high heat flux. We developed a waste decomposition plasma system by using DC arc plasma torches for the treatment of solid refuse fuel (SRF) at a load of 1.5 tons/day. To improve the existing pyrolysis and gasification systems with plasma technology, the high-temperature plasma reactor adopted structure to generate rotating flows of the gas streams for effective gas mixing inside the reactor, which were formed by the designed angle of DC arc plasma torches with an asymmetric array. The system is consisted of SRF feeder, plasma reactor, heat exchanger, wet scrubber and gas analyzer which is analyzed produced syngas. This study shows syngas production for experiments for SRF injection with heating temperature variation at the plasma reactor. The syngas concentration was approximately 46% with H2 (41%) and CO (5%) at 1100 °C above.