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Modeling the dynamic characteristics of gas-solid flow in a three-dimensional pilot scale coal beneficiation fluidized bed (CBFB) was performed on different platforms in this work.The Eulerian-Eulerian (EE) methods based on the kinetic theory of granular flows (KTGF) in the commercial code Fluent and the open-source code MFIX and the Eulerian-Lagrangian (EL) method in the commercial software CPFD-Barracuda have been used comparatively.The computational results were compared with each other and against the experimental results in references.Their differences along with their merits and faults were analyzed by means of instantaneous and time-averaged simulation features,such as bed density distributions,bubble configurations,particle velocity profiles and their computational costs.The results showed that acceptable predictions had been obtained by all these methods.The EE method incorporated in MFIX scheme showed superiority in both accuracy and speed under the same conditions than the numerical treatments in Fluent.A real particle size distribution was taken into account in the EL simulation of Barracuda and a fairly well agreed result was obtained.The incorporated CPFD method and the automatic time-step adjustment numerical technique have greatly reduce the computational costs when compared to the EE methods as well as other DPM/DEM methods.