APPLICATIONS OF CROSSFLOW MAGNETICALLY STABILIZED FLUIDIZED BEDS

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Abstract
The utilization of fluidized beds to effect separations has been limited by the fluid bypassing and particle mixing which tends to decrease the efficiency of separation. Application of a magnetic field to a fluidized bed of magnetizable particles produces a quiescent state with several of the best properties of both fluidized and fixed beds. Similar to fluidized beds, the magnetized beds resemble a liquid and are easily transported between vessels. Their contacting properties, however, are close to those of packed beds with near plug flow of both the fluid and bed particles. These magnetized fluidized beds have advantages when operated in a crossflow configuration, with continuous participates movement transverse to the ascending flow of the fluidizing fluid. Applications of these crossflow beds include solids/solids separation, fluid filtering, and chromatographic separations.