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U.S. Department of Energy
Office of Scientific and Technical Information

Process for blending coal with water immiscible liquid

Patent ·
OSTI ID:6685653
A continuous process for blending coal with a water immiscible liquid produces a uniform, pumpable slurry. Pulverized raw feed coal and preferably a coal derived, water immiscible liquid are continuously fed to a blending zone in which coal particles and liquid are intimately admixed and advanced in substantially plug flow to form a first slurry. The first slurry is withdrawn from the blending zone and fed to a mixing zone where it is mixed with a hot slurry to form the pumpable slurry. A portion of the pumpable slurry is continuously recycled to the blending zone for mixing with the feed coal.
Assignee:
Pittsburgh And Midway Coal Mining Co.
Patent Number(s):
US 4356078
OSTI ID:
6685653
Country of Publication:
United States
Language:
English