Intensification Effect of a Multi-Jet Structure on a Multiphase Flow and Desulfurization Process in a Fluidized Bed.

The introduction of a multi-jet structure at the bottom and middle of a fluidized bed can intensify the interphase mixing and improve desulfurization efficiency. The computational fluid dynamics were used to study the gas-liquid-solid flow in a bottom multi-jet fluidized bed and middle multi-jet fluidized bed (BMJFB and MMJFB). It was found that for the gas-liquid-solid interphase mixing, the intensification effect of introducing the multi-jet structure in the middle of the bed is more obvious than that in the bottom.