Process for destruction of chemical waste by oxidation in a plasma flame.

摘要

Chemical waste is burned in oxygen using an electric plasma flame generated by plasma gun (11) to heat a stream of gas which contains at least 70% by weight oxygen. Liquid waste in fine droplet form is introduced into the gas stream via a two-fluid atomiser (14) using a carrier gas also preferably oxygen. The total amount of oxygen present is at least 30% more than required for complete combustion of the liquid waste. The reaction mixture is maintained at a temperature of at least 1450 DEG C for a time of at least 2 milliseconds prior to cooling rapidly of the reaction products to a temperature below 300 DEG C by spraying coolant through venturi (24).