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Gasification system

Patent ·
OSTI ID:865308
 [1];  [2];  [3]
  1. Hempfield, PA
  2. Penn Hills, PA
  3. Bethel Park, PA
+ Show Author Affiliations
A method and system for injecting coal and process fluids into a fluidized bed gasification reactor. Three concentric tubes extend vertically upward into the fluidized bed. Coal particulates in a transport gas are injected through an inner tube, and an oxygen rich mixture of oxygen and steam are injected through an inner annulus about the inner tube. A gaseous medium relatively lean in oxygen content, such as steam, is injected through an annulus surrounding the inner annulus.
Research Organization:
Westinghouse Electric Corporation
DOE Contract Number:
;
Other Award/Contract Number:
EF-77-C-01-1514
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4493636
OSTI ID:
865308
Country of Publication:
United States
Language:
English

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/431/48/110/239/
annulus
annulus surrounding
bed
bed gasification
coal
coal particulate
coal particulates
concentric
concentric tubes
content
extend
extend vertically
fluidized
fluidized bed
fluids
gas
gaseous
gaseous medium
gasification
gasification reactor
injected
injecting
injecting coal
inner
inner annulus
inner tube
lean
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method
mixture
oxygen
oxygen content
particulates
process
process fluid
process fluids
reactor
relatively
rich
rich mixture
steam
surrounding
transport
transport gas
tube
tubes
tubes extend
upward
vertically
vertically upward