Fluidized-bed equipment and pressurized fluidized-bed (combustio

Details Fluidized-bed equipment and pressurized fluidized-bed (combustio Fluidized-bed equipment and pressurized fluidized-bed (combustio

1993-03-19

1996-10-08

Trammell, James P.

Boots, shoes, and leggings

364555, 364509, 364562, 209473, 209483, 209485, 34249, G01N 1300

Patent

active

055638031

ABSTRACT:
A bed height of a fluidized bed is detected which influences reaction of a fluidized-bed equipment. In the fluidized-bed equipment in which a fluidized particle is put into the vessel, physical properties at a plurality of points within the vessel are measured in a height direction thereof. An interior of the vessel is divided into upper and lower two regions. Physical property distribution curves of the respective regions are found, to find an intersection between the two curves as a bed height. Thus, it is possible to find the bed height of the fluidized bed which influences the reaction of the fluidized-bed equipment. An operating quantity which influences the reaction can be adjusted or regulated accurately.

REFERENCES:
patent: 4421523 (1983-12-01), Mehta et al.
patent: 5043912 (1991-08-01), Reus
patent: 5139412 (1992-08-01), Kychakoff et al.
patent: 5250273 (1993-10-01), Hornsey et al.
Chen et al., Moving-Bed Solids Flow in an Inclined Pipe Leading Into a Fluidized Bed, AICHE Journal, vol. 26, No. 1, Jan. 1980 pp. 24-30.
Rojo et al., A Capacitor Model to Interpret the Electric Behaviour of Fluidized Beds at Influence of Apparatus Geometry, Chemical Engineering Science, vol. 41, No. 8 pp. 2171-2181, 1986.
Fuchs et al., An Automated Monitoring System for an Experimental Coal Gasifier, Chemical Instrumentation, 1973-1974 vol. 5, No. 3 pp. 155-177.

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