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Calculation of distributor grids in vessels with fluidized bed of ion exchange resin

Journal Article · · Chem. Technol. Fuels Oils (Engl. Transl.); (United States)
OSTI ID:5611558
In fluidized processes the correct selection of a distributor device is critical. The criterion of quality of the gas or liquid flow is the ratio of distributor resistance to bed resistance. The ratio should be as high as possible. But the design parameters of the grid also influence quality. In gas/solid systems, the quality of fluidization is judged by magnitude of pressure drop pulsation; in liquid/solid systems, quality is according to bed expansion. By various equations, it is shown that the degree of bed expansion depends on the one hand on the design parameters of the distributor grid, the velocity of fluidizing flow, and the physical properties of the solid particles, and on the other hand on the nonuniformity of the solid phase concentration and the state of the bed. The given equations allow the correct selection of distributor grids at low velocity of fluidizing flow.
OSTI ID:
5611558
Journal Information:
Chem. Technol. Fuels Oils (Engl. Transl.); (United States), Journal Name: Chem. Technol. Fuels Oils (Engl. Transl.); (United States) Vol. 18:9-10; ISSN CTFOA
Country of Publication:
United States
Language:
English