Control of bed height in a fluidized bed gasification system

Details Control of bed height in a fluidized bed gasification system Control of bed height in a fluidized bed gasification system

1982-05-11

1983-12-20

Kratz, Peter F.

Gas: heating and illuminating

Processes

Fuel mixtures

34 10, 48206, 48210, 48DIG4, C10J 354

Patent

active

044215231

ABSTRACT:
In a fluidized bed apparatus a method for controlling the height of the fdized bed, taking into account variations in the density of the bed. The method comprises taking simultaneous differential pressure measurements at different vertical elevations within the vessel, averaging the differential pressures, determining an average fluidized bed density, then periodically calculating a weighting factor. The weighting factor is used in the determination of the actual bed height which is used in controlling the fluidizing means.

REFERENCES:
patent: 2271148 (1942-01-01), Becker et al.
patent: 2534051 (1950-12-01), Nelson
patent: 4191539 (1980-03-01), Patel et al.

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