MATHEMATICAL-MODELING OF A FLUIDIZED-BED STRAW GASIFIER - PART II - MODEL SENSITIVITY

The sensitivity of the kinetic-free homogeneous equilibrium model, dev eloped for fluidized bed gasification of cereal straw, was tested unde r a wine range of parameters, including equivalence ratio, bed height, fluidization velocity solid circulation coefficient, nitrogen-oxygen ratio, and fuel distribution function. The results showed that the bed temperature was sensitive to changes in all of these parameters. The composition and the higher heating value of the produced gas were only affected by the equivalence ratio and the nitrogen-oxygen ratio. The normalized gas production was mainly affected by the equivalence ratio , fluidization velocity, and nitrogen-oxygen ratio.