Technological parameters of the discharger intended for the polymer recycling

Theoretical justification of technological and constructive parameters of a discharger included into high-voltage pulse-periodic reactor for plasma-chemical recycling of polymer wastes is presented in the work. Geometric dimensions, gas flow rate, capacity of the discharge power supply, productivity, and the pulse frequency of the discharger have been determined. Operating conditions of the discharger were calculated for polyethylene, polyvinylchloride and polyethylene terephthalate (concentrations 10¹⁴, 10¹⁵, and 10¹⁶ cm³) in inert gas atmosphere (atoms concentrations of 10¹⁷, 10¹⁸, and 10¹⁹ cm³). For the polymers the maximum permissible discharge duration was calculated for the conditions taking into account the realization of the gas flow rate less 10 m/s: discharger power rating of 5 kW (range of capacities of industrial power supplies for metal vapor lasers), the frequency of the discharges at 2 Hz, and discharger's dimensions of 0.5 m. The obtained results can significantly reduce experimental studies and allow the creation of a plasma-chemical reactor for polymer wastes recycling. (paper)