Pyrolysis plant comprising an exhaust heated feeder, a pyrolysis reactor, a rotary screen cleaning tower, an exhaust heat fuel cleaner, a carbon refiner, a safety burner, wherein: a) the exhaust heated feeder at least comprises: a receiver hopper. having a vertical ram screw with bridge breaker arms and a pneumatic or hydraulic drive; a photo eye sensor or paddle switch; a slide gate; a twin screw feeder, having a twin screw housing, two screws of which one screw with left-hand flights and the other screw with right-hand-flights, a pneumatic or a hydraulic power system, having a gear speed reducer, and having a heated collar: b) the pyrolysis reactor at least comprises: an upper reactor screw and lower reactor screw with double flight screws having a cut and fold slots; burner boxes having one dual gas burner per box, a sealed slip collar to support the burner box on the reactor tubes (602/603), roller support carts, a tube steel frame having flat bar landings for the roller support carts, the roller support carts have cam follower rollers; drives on the drive support roller carts; c) the rotary screen cleaning tower at least comprises: the fan wheel; the spinning paddles; screen plates having tapered slots which taper in the direction of the spinning paddles from smaller and larger in a teardrop shape; a cleaning tower housing; a main-shaft; and an electric motor with a gear box; d) the exhaust heat fuel cleaner at least comprises: a main housing: an inlet tube; a split insulated metal enclosure; exhaust outlet port and heat inlet port (1008 and 1009); a discharge valve; a discharge holding tank; a pump; a diverter valve; a vent pipe; a condenser; a holding tank; a actuator valve; sensors (1016/1017); and a check valve; e) the carbon refiner at least comprises: the lower reactor screw and a gated airlock arrangement; a upper gate; an ash discharge auger; a first hopper; a level indicator; a drive; a middle gate; a lower hopper; a lower gate; a metering screw rotating in a hollow drive shaft; matching air openings; a duct; a burner blower; a combustion chamber; a pilot flame; a discharge opening; a motor drive; an packing seal; a vent line; a water bubbler; a vacuum source; a separator tank; a level switch; a vertical lift auger; an opening; openings in the lift tube; a condenser inline; a horizontal screw auger; a first airlock; a cyclone; a second airlock; a blower; an exhaust into a bag filter; and a third airlock; f) the safety burner tower at least comprises: an inlet valve; a pipe a safety burner housing base having a bubbler chamber; a modulating blower; a venturi nozzle; a pilot light; a bubbler chamber; having an insulated area; a computer; a stack; a battery backup; a level switch. a) the exhaust heated feeder at least comprises: a receiver hopper. having a vertical ram screw with bridge breaker arms and a pneumatic or hydraulic drive; a photo eye sensor or paddle switch; a slide gate; a twin screw feeder, having a twin screw housing, two screws of which one screw with left-hand flights and the other screw with right-hand-flights, a pneumatic or a hydraulic power system, having a gear speed reducer, and having a heated collar: b) the pyrolysis reactor at least comprises: an upper reactor screw and lower reactor screw with double flight screws having a cut and fold slots; burner boxes having one dual gas burner per box, a sealed slip collar to support the burner box on the reactor tubes (602/603), roller support carts, a tube steel frame having flat bar landings for the roller support carts, the roller support carts have cam follower rollers; drives on the drive support roller carts; c) the rotary screen cleaning tower at least comprises: the fan wheel; the spinning paddles; screen plates having tapered slots which taper in the direction of the spinning paddles from smaller and larger in a teardrop shape; a cleaning tower housing; a main-shaft; and an electric motor with a gear box; d) the exhaust heat fuel cleaner at least comprises: a main housing: an inlet tube; a split insulated metal enclosure; exhaust outlet port and heat inlet port (1008 and 1009); a discharge valve; a discharge holding tank; a pump; a diverter valve; a vent pipe; a condenser; a holding tank; a actuator valve; sensors (1016/1017); and a check valve; e) the carbon refiner at least comprises: the lower reactor screw and a gated airlock arrangement; a upper gate; an ash discharge auger; a first hopper; a level indicator; a drive; a middle gate; a lower hopper; a lower gate; a metering screw rotating in a hollow drive shaft; matching air openings; a duct; a burner blower; a combustion chamber; a pilot flame; a discharge opening; a motor drive; an packing seal; a vent line; a water bubbler; a vacuum source; a separator tank; a level switch; a vertical lift auger; an opening; openings in the lift tube; a condenser inline; a horizontal screw auger; a first airlock; a cyclone; a second airlock; a blower; an exhaust into a bag filter; and a third airlock; f) the safety burner tower at least comprises: an inlet valve; a pipe a safety burner housing base having a bubbler chamber; a modulating blower; a venturi nozzle; a pilot light; a bubbler chamber; having an insulated area; a computer; a stack; a battery backup; a level switch.