The objectif of this paper is to analyze, compare and discuss the flames generated from three Moroccan biomass in order to perform their combustion and to determine the biomass most optimal for combustion, to this end three samples of cork, Argan nut shell and olive cake are collected and analyzed in order to define their HHV, ultimate analysis, density and proximate analysis, these results will serve us as an input of Ansys fluent in order to simulate the flames generated from each biomass. Basing on results of combustion process simulations, it is found that cork is the combustible most vaforable for burning.