Agglomerating combustor-gasifier method and apparatus for coal gasification

Patent · Tue Sep 21 00:00:00 EDT 1976

OSTI ID:862646

Chen, Joseph L. P. ^[1]; Archer, David H ^[2]

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1. Murrysville, PA
2. 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apparatus and the manner of introduction of gases for combustion and fluidization is such that agglomerated ash can be withdrawn from the bottom of the apparatus and gas containing very low dust loading is produced.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

Related Subjects

agglomerating
combustor-gasifier
method
apparatus
coal
gasification
gasifying
takes
spout
fluid
bed
pressure
10
30
atmospheres
temperature
1800
degree
2200
configuration
manner
introduction
gases
combustion
fluidization
agglomerated
ash
withdrawn
bottom
gas
containing
dust
loading
produced
reaction
self-sustaining
burning
stoichiometric
amount
air
form
particularly
suitable
coarse
particles
coal particle
gasification reaction
fluid bed
gas containing
particularly suitable
coal gasification
coal particles
coal gas
stoichiometric amount
agglomerated ash
gasifying coal
coarse coal
/48/110/201/