Hydrodynamic studies in a bidimensional spout-fluidized bed was conducted using four materials of seven particle sizes spout-fluidized with air. Four nozzles of different diameters were used and their effect on minimum spouting velocity, minimum spout-fluidizing velocity and maximum spoutable bed height were determined. Three correlations, for predicting the minimum spouting velocity, minimum spout-fluidized velocity and maximum spoutable bed depth, were developed and compared with corresponding equations in the literature.