NOVELTY - A recycling system for recycling solid waste into energy comprises a heated rotary drum for generating hydrocarbon vapors and carbon black solids; input control valves for sealing vacuum downstream from input conveyors; discharge control valves for sealing vacuum upstream from discharge conveyors, and a vacuum pump for maintaining a selected vacuum of less than 5 inches of water between the input valves and discharge valves such that hydrocarbon vapors are drawn from the flow line and the rotary drum into a condenser.    USE - For recycling waste, e.g. rubber tires, into energy (claimed); and also for recycling e.g. sewage sludge, animal waste, trash and refuge, solid industrial waste, coal and other solid fossil fuels into energy.    ADVANTAGE - The system avoids the requirement of a fluidized bed or other special reactions. Solid material need not be specially treated or prepared into a slurry before being heated to release hydrocarbons. The system is relatively compact. It can be placed in a small location. The emissions from the system are relatively clean and non-hazardous. By providing a system which is operating under a vacuum, the likelihood of inadvertent release of gases is minimized, while the vacuum pump draws the hydrocarbon vapors, preferably in a counter flow direction from the particles moving through the system, toward the condenser units.    DETAILED DESCRIPTION - A recycling system for recycling solid waste into energy comprises a heated enclosure having an interior chamber and internal baffles within the heated chamber; input conveyor(s) for inputting waste particles to the heated enclosure and having a flow line positioned with respect to the baffles to provide a temperature gradient along the flow line of 150degreesF to produce hydrocarbon vapors and residual solids, where the input conveyors mechanically move the waste particles and the residual solids along the flow line; a heated rotary drum in fluid communication with the flow line for receiving the waste particles and residual solids from the flow line, where the rotary drum has an interior temperature of 730-800degreesF for generating hydrocarbon vapors and carbon black solids; a condenser in fluid communication with the flow line and the rotary drum for receiving the vapors from the flow line and the rotary drum and outputting liquids including hydrocarbons and gas including hydrocarbons; discharge conveyor(s) for discharging the carbon black solids from the rotary drum; at least two input control valves for sealing vacuum downstream from the input conveyor(s), where each input control valve has at least two axially spaced closure gates; at least two discharge control valves for sealing vacuum upstream from the discharge conveyor(s), where each discharge control valve has at least two axially spaced closure gates; and a vacuum pump for maintaining a selected vacuum of less than 5 inches of water between the input valves and the discharge valves such that hydrocarbon vapors are drawn from the flow line and the rotary drum into the condenser. The solid waste has a cross-sectional particle size less than 1 inch in length.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic representation of a recycling system.