Fast fluidized bed steam generator

Patent · Tue Jan 01 00:00:00 EST 1980

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., OH (United States)
• 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

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