Gautam Mehta

US Patent:

44215231, Dec 20, 1983

Filed:

May 11, 1982

Appl. No.:

6/377231

Inventors:

Gautam I. Mehta - Greensburg PA
Lynn M. Rogers - Export PA

Assignee:

The United States of America as represented by the Department of Energy - Washington DC

International Classification:

C10J 354

US Classification:

48197R

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.