Air gasification of rice husk in bubbling fluidized bed reactor with bed heating by conventional charcoal

Study of air gasification of rice husk (25-31.3 kg/h) has conducted in a bench-scale SS-fluidized bed gasifier (FBG), developed at SPRERI, where initial heating of FBG bed material was performed by burned charcoal to reduce the additional electrical consumption. The carbon conversion efficiency (91%), cold and hot gas efficiency, and HHV of the producer gases are found better with dolomite plus sand usage in comparison to sand bed alone. At ER of 0.33 with 20% dolomite plus rest of sand has resulted a substantial tar and SPM reduction of 41-46% in the producer gas, found suitable for thermal application.62