A thermochemical treatment system for plastic and/or elastomeric waste comprising:
- a) a raw material intake Module (8) with an inertization zone (81) provided with an oxygen sensor (815) and a raw material level control sensor (813);
- b) a first reaction unit (1) with an internal region provided with molten salt coils (5), having a valve controlled inlet (101) for gravity flow of the waste, received from the raw material intake module (8), to be melted, generating a solid fraction which flows continuously through an outlet (104), a gas fraction released by a valve controlled outlet (105), and a liquid fraction released by a valve controlled outlet (107);
- c) a second reaction unit (2) with an internal region provided with molten salt coils (5), having a valve controlled inlet (201) to which is connected a line (108) for admission of the liquid fraction released by the outlet (107) of the first reaction unit (1), a level control sensor (202), a temperature sensor (203) and a liquid fraction outlet valve (204);
- d) a third reaction unit (3) having an internal region provided with molten salt coils (5), said third reaction unit (3) receiving the liquid fraction released by the valve (204) of the second reaction unit (2) through an inlet controlled by a valve (205) positioned at a midpoint of the third reaction unit (3), in said third reaction unit (3) being injected an inert gas, under positive pressure and temperature above 300° C., having pressure sensors (206) and temperature sensors (203) and an outlet controlled by a proportional valve (301) for releasing the gas fraction when the reaction time is over;
- e) a heat exchanger (13) which receives the gas fraction released by the valve (301) of the third reaction unit (3) for cooling by indirect contact with a refrigerant for conversion into fractionated combustible liquids which are stored in a tank (14);
- f) a gas washing unit (10) which receives the gas fraction released by the outlet (105) of the first reaction unit (1) through a line (106), said gas washing unit (10) having an upper chamber (1011) with an inlet controlled by a valve (1012) and sprinklers which release a mist of a neutralizing solution which is fed by a pipe (1013), a lower outlet (1014) in the upper chamber (1011), an intermediate chamber (1015) where the gases are neutralized by a chemical solution, and a lower chamber (1016) provided with a valve controlled outlet (1017) which receives the liquid-phase gases from the intermediate chamber (1015) and separates them using the chemical solution stored in the upper chamber (1011);
- g) a bubbling fluidized bed reactor (12) which receives the gas fraction from the gas washing unit (10) and the non-condensable gases in the heat exchanger (13) to feed a combustion unit (7) for heating the molten salt storage tank (6);
- h) a control unit (4) with a programmable microprocessor connected to a microcomputer which receives data from the level control sensors (813) and (202) and from the temperature sensors (203), oxygen sensor (815) which obtains oxygen concentration data, pressure sensors (206).