Agglomerating combustor-gasifier method and apparatus for coal gasification
Patent
·
OSTI ID:862646
- Murrysville, PA
- Pittsburgh, PA
A method and apparatus for gasifying coal wherein the gasification takes place in a spout fluid bed at a pressure of about 10 to 30 atmospheres and a temperature of about 1800.degree. to 2200.degree.F and wherein the configuration of the apparatus and the manner of introduction of gases for combustion and fluidization is such that agglomerated ash can be withdrawn from the bottom of the apparatus and gas containing very low dust loading is produced. The gasification reaction is self-sustaining through the burning of a stoichiometric amount of coal with air in the lower part of the apparatus to form the spout within the fluid bed. The method and apparatus are particularly suitable for gasifying coarse coal particles.
- Assignee:
- United States of America as represented by United States Energy (Washington, DC)
- Patent Number(s):
- US 3981690
- Application Number:
- 05/541,376
- OSTI ID:
- 862646
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/48/110/201/
10
1800
2200
30
agglomerated
agglomerated ash
agglomerating
air
amount
apparatus
ash
atmospheres
bed
bottom
burning
coal
coal gas
coal gasification
coal particle
coal particles
coarse
coarse coal
combustion
combustor-gasifier
configuration
containing
degree
dust
fluid
fluid bed
fluidization
form
gas
gas containing
gases
gasification
gasification reaction
gasifying
gasifying coal
introduction
loading
manner
method
particles
particularly
particularly suitable
pressure
produced
reaction
self-sustaining
spout
stoichiometric
stoichiometric amount
suitable
takes
temperature
withdrawn
10
1800
2200
30
agglomerated
agglomerated ash
agglomerating
air
amount
apparatus
ash
atmospheres
bed
bottom
burning
coal
coal gas
coal gasification
coal particle
coal particles
coarse
coarse coal
combustion
combustor-gasifier
configuration
containing
degree
dust
fluid
fluid bed
fluidization
form
gas
gas containing
gases
gasification
gasification reaction
gasifying
gasifying coal
introduction
loading
manner
method
particles
particularly
particularly suitable
pressure
produced
reaction
self-sustaining
spout
stoichiometric
stoichiometric amount
suitable
takes
temperature
withdrawn