Pelletizing lignite

Patent · Mon Oct 31 23:00:00 EST 1983

OSTI ID:864757

Goksel, Mehmet A ^[1]

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1. Houghton, MI

Lignite is formed into high strength pellets having a calorific value of at least 9,500 Btu/lb by blending a sufficient amount of an aqueous base bituminous emulsion with finely-divided raw lignite containing its inherent moisture to form a moistened green mixture containing at least 3 weight % of the bituminous material, based on the total dry weight of the solids, pelletizing the green mixture into discrete green pellets of a predetermined average diameter and drying the green pellets to a predetermined moisture content, preferrably no less than about 5 weight %. Lignite char and mixture of raw lignite and lignite char can be formed into high strength pellets in the same general manner.

• Assignee: Goksel; Mehmet A. (Houghton, MI)
• Patent Number(s): US 4412840
• Application Number: 06/225,491
• OSTI ID: 864757
• Country of Publication: United States
• Language: English

Related Subjects

/44/
500
amount
aqueous
average
average diameter
base
based
bituminous
blending
btu
calorific
calorific value
char
containing
content
diameter
discrete
dry
dry weight
drying
emulsion
finely-divided
form
formed
green
inherent
lb
lignite
manner
material
mixture
mixture containing
moistened
moisture
moisture content
pelletizing
pellets
predetermined
preferrably
raw
solids
strength
sufficient
sufficient amount
total
value
weight