NOVELTY - The bio-fuel injection system comprises a bioreactor (50) having a fluidized bed comprising a bed material (51), a feedstock, a non-oxygen feedstock gas supplementing and pressurizing the feedstock, a metering feeder (24) receiving the feedstock from a feedstock source, a vertical drop tube (28) receiving feedstock from the feeder, a fast injection auger (38) receiving the feedstock and the feedstock gas from the drop tube and injecting the feedstock and the feedstock gas into the reactor, and a gas distributor plate (52) partially supporting the bed material.    USE - The system is useful for injecting bio-fuel into a bioreactor.    ADVANTAGE - The system ensures efficient and rapid injection of bio-fuel in the bioreactor with increased flexibility and efficiency, and minimizes the gas pressure drop across the distributor plate thus easily and accurately controlling the pressure within the body of the bioreactor.    DETAILED DESCRIPTION - The bio-fuel injection system comprises a bioreactor (50) having a fluidized bed comprising a bed material (51), a feedstock, a non-oxygen feedstock gas supplementing and pressurizing the feedstock, a metering feeder (24) receiving the feedstock from a feedstock source, a vertical drop tube (28) receiving feedstock from the feeder, a fast injection auger (38) receiving the feedstock and the feedstock gas from the drop tube and injecting the feedstock and the feedstock gas into the reactor, and a gas distributor plate (52) partially supporting the bed material. The supplemented feedstock is injected into the bioreactor. A combustible non-oxygen syngas is produced from the bioreactor. The bioreactor comprises a gasifier or a pyrolyzer. A non-feedstock gas comprising a fluidization gas is injected into the bioreactor. The feedstock gas and the fluidization gas have same composition. The fluidizing gas is directed through the gas distributor plate so that the bed material is fluidized by the fluidization gas. The bed material comprises nodules, sand or silica, and a catalyst. The gas distributor plate comprises a first screen and a third screen that have a tighter mesh than a second screen and a fourth screen. One of the screens has a Dutch weave design. An INDEPENDENT CLAIM is included for a method of injecting feedstock into a bioreactor.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a fuel injection system.    Metering feeder (24)    Drop tube (28)    Injection auger (38)    Bioreactor (50)    Bed material (51)    Gas distributor plate. (52)