Biomass gasification in a bubbling fluidized bed reactor

Abstract

The effect of secondary air flow rate and particle size on the combustion temperature inside the bubbling fluidized bed reactor was reviewed. The experiments were carried out for four particle sizes with varied secondary air flow rates. From the results it was evident that the secondary air flow rate has a larger impact on the temperature of the freeboard zone. The temperature profiles show that a maximum temperature is achievable when the magnitude of the secondary air flow rate is lower than that of the primary air flow rate. It was concluded that desired maximum temperature can be achieved regardless of the particle size through the optimum secondary air flow rates for each particle size.