Numerical Modeling of the Entrained Flow Gasification (EFG) of Kentucky Coal and Biomass

The entrained flow gasification of two feedstocks (Kentucky coal and wood waste) had been conducted in this study with numerical modelling. The main objective of this work is to determine the gasification behaviour of Kentucky coal and wood waste along the gasifier, and to evaluate the effect of gasification parameters such as equivalence ratio, pressure and temperature on the gasification metrics. The experimental study was conducted in the air-blown atmospheric drop tube experimental facility at the Waste-2-Energy Laboratory at Masdar Institute. The numerical model, which was based on the Lagrangian-Eulerian scheme, predicted the experimental results reasonably. The effect of the fuel type on the gas composition along the centreline of the gasifier indicated that Kentucky coal produced a higher efficiency when compared to that of wood waste. Moreover, the gasification efficiency was most sensitive to the equivalence ratio.