Fast fluidized bed steam generator

Patent · Mon Dec 31 23:00:00 EST 1979

OSTI ID:863485

Bryers, Richard W ^[1]; Taylor, Thomas E ^[2]

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1. Flemington, NJ
2. Bergenfield, NJ

A steam generator in which a high-velocity, combustion-supporting gas is passed through a bed of particulate material to provide a fluidized bed having a dense-phase portion and an entrained-phase portion for the combustion of fuel material. A first set of heat transfer elements connected to a steam drum is vertically disposed above the dense-phase fluidized bed to form a first flow circuit for heat transfer fluid which is heated primarily by the entrained-phase fluidized bed. A second set of heat transfer elements connected to the steam drum and forming the wall structure of the furnace provides a second flow circuit for the heat transfer fluid, the lower portion of which is heated by the dense-phase fluidized bed and the upper portion by the entrained-phase fluidized bed.

• Research Organization: Battelle Columbus Labs., Ohio (USA)
• DOE Contract Number: EX-76-C-01-2472
• Assignee: Foster Wheeler Development Corporation (Livingston, NJ)
• Patent Number(s): US 4183330
• OSTI ID: 863485
• Country of Publication: United States
• Language: English

Related Subjects

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bed
circuit
combustion
combustion-supporting
combustion-supporting gas
connected
dense-phase
disposed
drum
elements
elements connected
entrained-phase
fast
fast fluidized
flow
flow circuit
fluid
fluidized
fluidized bed
form
forming
fuel
fuel material
furnace
gas
generator
heat
heat transfer
heated
high-velocity
material
particulate
particulate material
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phase fluid
phase portion
portion
primarily
provide
provides
set
steam
steam drum
steam generator
structure
supporting gas
transfer
transfer fluid
upper
upper portion
vertically
vertically disposed
wall
wall structure