Process for removal of sulfur and ash from coal

Patent · Tue Apr 14 04:00:00 EST 1981

OSTI ID:6328262

Burk, E H; Masologites, G P; Sun, J; Yoo, J S

A process for reducing the sulfur and ash content of coal wherein coal particles are treated with a conditioning agent in an aqueous slurry prior to agglomeration with a minor amount of hydrocarbon oil. After separation of the coal-oil agglomerate from ash and mineral matter remaining in the aqueous slurry, additional oil is added to provide a slurry of coal particles in hydrocarbon oil. Agglomeration of remaining ash and mineral matter is effected by addition of a minor amount of water. After separation of the mineral agglomerate and recovery from the oil slurry, treated coal particles are substantially reduced in ash and sulfur content.

• Assignee: Atlantic Richfield Co
• Patent Number(s): US 4261699
• OSTI ID: 6328262
• 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
FOSSIL FUELS
FUEL OILS
FUELS
HYDROGEN COMPOUNDS
LIQUID FUELS
MATERIALS
MINERALS
MIXTURES
OILS
ORES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PARTICLES
PETROLEUM PRODUCTS
PYRITES
SLURRIES
SULFIDES
SULFUR COMPOUNDS
SULFUR ORES
SUSPENSIONS
WATER