Abstract: Euler multiphase flow model based on the kinetic theory of granular flow is applied to simulate the particle flow behavior in a 3D numerical models cross-flow moving bed in order to optimize the reactor structure. The Gidaspow drag model, Schaeffer friction stress model and particle restitution coefficient 0.80 are chosen to investigate the cross-flow moving bed with three kinds of internals, herringbone, triangle and splayed. The influences of internal structure on flow transformation, pressure and velocity field are also studied. Results show that the particle flow improves and the pressure field distribution of particle force on the wall changes with the installation of different internals. The pressure of upper bed increases while the peek pressure of tapered feeding section decreases. The triangle internal shows the most ideal effect on the transformation from the funnel flow to the overall flow.

Key words: Cross-flow moving bed, Euler multiphase flow model, Gas-solid flow, Internals