Process for removal of sulfur and ash from coal

Patent · Tue Jun 02 04:00:00 EDT 1981

OSTI ID:6051572

Baillie, L A; Burk, E H; Sun, J

A process is described for reducing the sulfur and ash content of coal wherein coal particles are treated in an aqueous slurry with a minor amount of hydrocarbon oil to form coal-oil aggregates. The coal-oil aggregates are separated from ash and mineral matter in the slurry by dissolved gas flotation. Optionally, the coal particles may be treated with a conditioning agent prior to the aggregation step. Recovered coal particles comprise a substantial part of the feed carbon values.

• Assignee: Atlantic Richfield Co
• Patent Number(s): US 4270926
• OSTI ID: 6051572
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
AGGLOMERATION
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
DEASHING
DESULFURIZATION
DISPERSIONS
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUEL OILS
FUELS
HYDROGEN COMPOUNDS
LIQUID FUELS
MATERIALS
MINERALS
MIXTURES
OILS
ORES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PYRITES
SEPARATION PROCESSES
SLURRIES
SULFIDES
SULFUR COMPOUNDS
SULFUR ORES
SUSPENSIONS
WATER