Treballs Finals de Grau d'Enginyeria Química, Facultat de Química, Universitat de Barcelona, Curs: 2015-2016, Tutors: Joan Llorens Llacuna i Alexandra Elena Bonet RuizA fluidized bed is defined as a process that consists of a bed of solid particles and a fluid flow to achieve a homogenous mixture between particles and fluid. Actually, due to the increase of the computer’s power, simulations based on microscopic balances are performed using with CFD (Computational Fluid Dynamics) software. Therefore, with this tool, the behavior and the functioning of the simulated unit can be visualized and better understood. Consequently, in this project the simulation program ANSYS® is studied, considering the case study of a fluidized bed. It is going to analyze its behavior by the contours of volume fraction and its pressure drop. Eventually, the obtained results contribute to the understanding of how a fluidized bed works.