NOVELTY - The system has a primary gasifier (2) that is provided with an inlet for receiving gasifiable materials into the interior and outlets for discharging a flue gas discharge stream and char remaining after initial gasification of gasifiable materials. A rotatable screw conveyor is extended through the chamber interior of a secondary gasifier (17) from one proximate end to other proximate end for moving char. A screw conveyor is provided with an axial element having two ends with several spiral flights forming the continuous helix around the axial element.    USE - Fluidized bed gasifier system for use in tire carburetion process, for gasification of solid fuels and biomass fuels such as wood, waste and alcohol fuels. Can also be used in miscanthus, switch grass, hemp, corn, poplar, willow, sorghum, sugarcane and variety of tree species.    ADVANTAGE - The air supplied for gasification is controlled in order to control temperature conditions so as to gasify the fuel. The utilization of alternative energy sources is achieved, while maintaining the high degree of environmental quality in emissions. The ability to manage fuel-bed configuration permits control of forced-draft combustion air so as to minimize combustion and gasify nearly carbonaceous fuel without complete combustion taking place. The gasifier is allowed to operate at moderate temperature from auto-ignition to desired exit gas temperature. The combination of fuel bed auger agitating, stirring with air injection produce precise temperature control evidencing the tire carburetion process auger gasifier system can be achieved. The reliability and clean operation can be achieved with high throughput. The material lifetime is prolonged. The ability to combust a wide variety of heterogeneous solid fuels is achieved. The fuel sufficient ignition energy to evaporate moisture, and to heat the ash and gasify the remaining fuel without significantly changing the instantaneous bed temperature can be ensured.    DETAILED DESCRIPTION - The chamber is provided with one end having an inlet for receiving char into the interior and other end with outlets for discharging an enriched water gas stream produced by steam treatment of char within the secondary gasifier chamber and ash remaining after treatment. The horizontal position of elongated stationary chamber defines an upper and a lower side. The secondary gasifier is provided for receiving char from primary gasifier, and is provided with an elongated horizontally arranged in stationary secondary gasifier chamber.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the gasifier system for use in tire carburetion process.    Primary gasifier (2)    Boiler (7)    Generator (16)    Secondary gasifier (17)    Gas turbine (30)