Process for changing caking coals to noncaking coals

Patent · Tue Jan 01 00:00:00 EST 1980

OSTI ID:863717

Beeson, Justin L ^[1]

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1. Woodridge, IL

Caking coals are treated in a slurry including alkaline earth metal hydroxides at moderate pressures and temperatures in air to form noncaking carbonaceous material. Hydroxides such as calcium hydroxide, magnesium hydroxide or barium hydroxide are contemplated for slurrying with the coal to interact with the agglomerating constituents. The slurry is subsequently dewatered and dried in air at atmospheric pressure to produce a nonagglomerating carbonaceous material that can be conveniently handled in various coal conversion and combustion processes.

• Research Organization: Gas Technology Institute, Des Plaines, IL (United States)
• DOE Contract Number: EX-76-C-01-2307
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4234319
• OSTI ID: 863717
• Country of Publication: United States
• Language: English

Related Subjects

process
changing
caking
coals
noncaking
treated
slurry
including
alkaline
earth
metal
hydroxides
moderate
pressures
temperatures
air
form
carbonaceous
material
calcium
hydroxide
magnesium
barium
contemplated
slurrying
coal
interact
agglomerating
constituents
subsequently
dewatered
dried
atmospheric
pressure
produce
nonagglomerating
conveniently
handled
various
conversion
combustion
processes
coal conversion
metal hydroxides
barium hydroxide
combustion process
alkaline earth
carbonaceous material
earth metal
atmospheric pressure
metal hydroxide
calcium hydroxide
caking coals
combustion processes
slurry including
magnesium hydroxide
moderate pressures
various coal
moderate pressure
caking coal
/44/