Method for removing sulfur from coal. [Patent application]
Patent
·
OSTI ID:7362118
A slurry of comminuted coal or other carbonaceous material is heated to an elevated temperature in intimate contact with air in order to oxidize pyrites and other sulfur compounds to form sulfates. The sulfates are removed by draining the liquid from the slurry and washing the coal particles with water. The filtrate resulting from the draining and washing steps can be recycled to earlier wash stages or to slurry the untreated coal.
- Assignee:
- TIC; ERA-01-022435; EDB-76-062760
- Patent Number(s):
- None
- OSTI ID:
- 7362118
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
AIR
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
CLEANING
COAL
DESULFURIZATION
DISPERSIONS
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
HEATING
MINERALS
MIXTURES
NONMETALS
ORES
OXIDATION
OXYGEN COMPOUNDS
PYRITES
REMOVAL
SLURRIES
SULFATES
SULFIDES
SULFUR
SULFUR COMPOUNDS
SULFUR ORES
SUSPENSIONS
WASHING
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
AIR
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
CLEANING
COAL
DESULFURIZATION
DISPERSIONS
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
HEATING
MINERALS
MIXTURES
NONMETALS
ORES
OXIDATION
OXYGEN COMPOUNDS
PYRITES
REMOVAL
SLURRIES
SULFATES
SULFIDES
SULFUR
SULFUR COMPOUNDS
SULFUR ORES
SUSPENSIONS
WASHING