Supercritical desulfurization rates of whole and treated coals

Conference · Wed Jun 01 04:00:00 EDT 1988 · Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States)

OSTI ID:6062181

Hippo, E J; Tao, W; Sarvela, D P; Muchmore, C B; Kent, A C

Growing concern over the environmental effects of acid rain has resulted in increased interest in development of precombustion removal of sulfur from coal. Most coals are not in compliance with the recent requirements which call for reduction of sulfur emissions from various fuel sources. Under proposed guidelines, even low sulfur, western bituminous coals require some cleaning to meet new source standards of 1.2 lb of SO/sub 2/ per million Btu's and 90% reduction in sulfur content of the coal on a concentration basis. Typically, Illinois Basin coals contain more sulfur than coals from other coal bearing regions. In order for typical Illinois coals to meet EPA guidelines, some organic sulfur must be removed, in addition to most of the pyritic sulfur. Almost all Illinois coals contain greater than 1% organic sulfur, with most containing more than 2%. The Department of Mechanical Engineering and Energy Processes at Southern Illinois University is developing a desulfurization process to remove both organic and inorganic sulfur from coal without deleteriously affecting key combustion properties. This process employs alcohols under supercritical conditions. The coal/alcohol mixtures produce a clean solid product with an acceptable sulfur content, a high Btu gaseous product and coal derived liquids.

• Research Organization: Dept. of Mechanical Engineering and Energy Processes, Southern Illinois Univ., Carbondale, IL (US)
• OSTI ID: 6062181
• Report Number(s): CONF-8806136-
• Conference Information: Journal Name: Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States) Journal Volume: 33:1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600 -- Coal
Lignite
& Peat-- Properties & Composition
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
ALCOHOLS
ATMOSPHERIC PRECIPITATIONS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL BONDS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CLEAN AIR ACT
COAL
COAL LIQUEFACTION
DESULFURIZATION
ELEMENTS
EMISSION
ENERGY SOURCES
ENVIRONMENTAL EFFECTS
EXTRACTION
FEDERAL REGION V
FOSSIL FUELS
FUELS
HYDROGEN
HYDROXY COMPOUNDS
ILLINOIS
KINETICS
LAWS
LIQUEFACTION
MATERIALS
NONMETALS
NORTH AMERICA
ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POLLUTION LAWS
RAIN
REACTION KINETICS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SULFUR COMPOUNDS
SULFUR CONTENT
SULFUR DIOXIDE
SULFUR OXIDES
SUPERCRITICAL GAS EXTRACTION
THERMOCHEMICAL PROCESSES
USA