Pelletizing lignite

Patent · Tue Nov 01 00:00:00 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

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