NOVELTY - An inert gas is made to flow through reduction zone (14) from reduction inlet to reduction outlet (18) in such a way that pressure in reduction zone is maintained above ambient pressure of local environment for material recovery system (10). Electromagnetic wave energy is applied to the organic source in reduction zone via bifurcated waveguide assembly (24) in absence of oxygen to produce gaseous organic decomposition product(s) in reduction zone which is exhausted from the reduction zone along with the inert gas through the reduction outlet.    USE - Recovery of organic decomposition product produced from organic source in gas-tight reduction zone of material recovery system, such as recovery of gaseous by-products during destructive distillation (claimed) used in petrochemical industries and refineries. Can also be used for tire reduction, plastic reduction, polychlorinated-biphenyl destruction, and biological waste destruction/incineration, for recovering carbon black, petroleum products, and steel. The recovered liquid by-products can be used as fuel for power plants, diesel engines, heaters, and furnaces. The fuel gas by-products can be used for power plants and turbine engines.    ADVANTAGE - The process enables recovery of by-products which may be refined further using distillation columns or other processes commonly used in refineries or may be used directly as fuel. The method uses eco-friendly fuel-producing processes to convert environmentally-unacceptable waste into recovered by-products which may produce sales revenue.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for material recovery system including a housing (12) adapted to receive an organic source in a reduction zone and including an inert gas inlet (16) and a reduction outlet in operative communication with the reduction zone, an inert gas supply (20) in operative communication with the inert gas inlet and adapted to purge the reduction zone and maintain a positive pressure therein, an electromagnetic wave generator (22) in operative communication with the housing and adapted to apply electromagnetic wave energy to the reduction zone via a bifurcated waveguide assembly, and a controller (25) in operative communication with the electromagnetic wave generator and adapted to control application of the electromagnetic wave energy to the reduction zone. The initial gaseous content of the reduction zone is exhausted via the reduction outlet during purging, and inert gas is exhausted via the reduction outlet during the maintaining of positive pressure. The gaseous organic decomposition product(s) is exhausted with the inert gas via the reduction outlet during maintaining of the positive pressure.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of the material recovery system.    Material recovery system (10)    Housing (12)    Reduction zone (14)    Inert gas inlet (16)    Reduction outlet (18)    Inert gas supply (20)    Electromagnetic wave generator (22)    Bifurcated waveguide assembly (24)    Controller (25)