Chemical removal of organic sulfur from coal

Conference · Sat Mar 01 04:00:00 EST 1980 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:5361163

Meyers, R A; Hart, W D

The removal of nearly three-quarters of the organic sulfur content from a high sulfur coal has been demonstrated. Further development of these techniques can be expected to result in even more complete sulfur removal through adjustment of reaction conditions. The pyrite content of coal inhibits the efficient extraction of organic sulfur. Air pollution control standards for coal combustion for power generation can be met using the Gravimelt Processes. Extraction of float coal with KOH/NaOH melt resulted in a product coal containing an average of 0.9 lb SO/sub 2//10/sup 6/ Btu resulting in an 86% reduction in sulfur from run-of-mile. Treatment of the sink coal for pyrite removal reduces the sulfur content to 4 lb SO/sub 2//10/sup 6/ Btu. The pyrite removal step could be accomplished with a Fe/sub 2/(SO/sub 4/)/sub 3/ leach or by the US Department of Energy Oxydesulfurization Processes. The treated float coal meets many proposed and the currently implemented Standards for New Stationary Sources, while the treated sink coal meets some State Implementation Standards for existing stationary sources.

• Research Organization: TRW Systems and Energy, Redondo Beach, CA
• OSTI ID: 5361163
• Report Number(s): CONF-800303-(Vol.25No.2)
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 25:2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
ALKALI METAL COMPOUNDS
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
DESULFURIZATION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROXIDES
MINERALS
ORES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
POTASSIUM HYDROXIDES
PYRITES
REMOVAL
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SULFIDES
SULFUR COMPOUNDS
SULFUR ORES