Pelletized fixed sulfur fuel

Patent · Tue Mar 31 00:00:00 EST 1981

OSTI ID:6422127

Ban, T E; Rao, A D

A fixed sulfur fuel is produced by proportioning sulfur-bearing coal and limestone in amounts which will cause the calcium in the limestone to react with a large amount of sulfur in the coal. The proportioned mixture is ground and blended and then balled or compacted to form pellets. By means of either a carbonizing or pyrolyzing technique conducted in a traveling grate machine, where the pellets are heated to at least 800* F., the coal is pyrolyzed or carbonized, the limestone is calcined, and the sulfur is fixed in a calcium compound which remains stable in the ash after the pellets are burned as a fuel.

• Assignee: Dravo Corp
• Patent Number(s): US 4259085
• OSTI ID: 6422127
• Resource Relation: Patent File Date: Filed date 24 Apr 1978
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
DESULFURIZATION
COAL PREPARATION
AIR POLLUTION ABATEMENT
CALCIUM OXIDES
CARBONIZATION
LIMESTONE
MIXING
PELLETS
PYROLYSIS
SULFUR
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTIONS
COMMINUTION
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
ROCKS
SEDIMENTARY ROCKS
THERMOCHEMICAL PROCESSES
010402* - Coal
Lignite
& Peat- Purification & Upgrading
014000 - Coal
Lignite
& Peat- Combustion