Process for making metallurgical coke using fluidizer char

Patent · Tue Feb 03 04:00:00 EST 1981

OSTI ID:6422353

Gorin, E; Jasulaitis, W A; Theodore, F W; Wasson, G E

The present invention is an improvement in the known process of making a coking feedstock from non-caking or weakly caking coals for slot-type coke ovens wherein the coal is subjected to solvent extraction; and at least the non-distillable extract in the effluent slurry product, after removal of part or all of the solvent, is mixed with carbonaceous solids to serve as a binder therefor. The improvement resides in the use of fluidizer char (Which is produced by the low temperature carbonization of coal in a fluidized bed) as the carbonaceous solids. The fluidizer char is preferably mixed with the coal extract slurry (After removal of solvent) in a liquid state at elevated temperatures under pelletizing and non-carbonizing conditions. The pelletized product, after cooling and crushing, is suitable as part or all of the coking feedstock for coke ovens.

• Assignee: Conoco Inc
• Patent Number(s): US 4248669
• OSTI ID: 6422353
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010401* -- Coal & Coal Products-- Carbonization-- (-1987)
BINDERS
CARBONACEOUS MATERIALS
CARBONIZATION
CHARS
CHEMICAL REACTIONS
COAL
COKE
COKING
DECOMPOSITION
DISPERSIONS
ENERGY SOURCES
EXTRACTION
FABRICATION
FOSSIL FUELS
FUELS
MATERIALS
MIXTURES
MOLDING
PELLETIZING
PYROLYSIS PRODUCTS
SEPARATION PROCESSES
SLURRIES
SOLVENT EXTRACTION
SUSPENSIONS
USES