A method and a system are provided for feeding a biomass material feed into a fluidized bed gasifier. The system includes a first plurality of screw conveyors disposed circumferentially around and connected to or integral with a gasifier shell of the fluidized bed gasifier, such that each of the first plurality of screw conveyors is in feed communication with a gasifier chamber defined by the gasifier shell. The system also includes a plurality of secondary receptacles, each individually coupled to a respective screw conveyor of the first plurality of screw conveyors, such that each of the plurality of secondary receptacles includes a secondary receptacle shell defining a secondary receptacle chamber in feed communication with the respective screw conveyor. The system further includes a plurality of primary receptacles, each including a primary receptacle shell defining a primary receptacle chamber in feed communication with at least two of the plurality of secondary receptacles.