Chemical coal cleaning using selective oxidation

Technical Report · Mon Jan 01 00:00:00 EST 1990

OSTI ID:5926274

Palmer, S R ^[1]; Hippo, E ^[2]

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1. Southern Illinois Univ., Carbondale, IL (USA). Dept. of Geology
2. Southern Illinois Univ., Carbondale, IL (USA). Dept. of Mechanical Engineering and Energy Processes

The combustion of high sulfur coals contributes substantially to the problems associated with acid rain. Current and pending clean air legislation is designed to reduce this problem by cutting the levels of sulfur dioxide that may be released into the atmosphere. These new laws prevent the direct and efficient utilization of many important Illinois coals reserves which, unfortunately are high in sulfur. This may present the already troubled Illinois coal industry with a difficult future if solutions to the sulfur problem are not found. During this quarter samples of IBCSP coals 101 and 106 have been obtained and aliquots ground to different particle sizes. Proximate, total sulfur, BTU and particle size distributions have been performed on these samples. From these analyses it is clear that no preferential losses of coal components occurred during the coal preparation task. Particle size analysis showed that preparation of samples with different mean particle volumes had been successful. Some preliminary results obtained for an Illinois No. 6 coal using mixtures of acetic acid, water and hydrogen peroxide showed that it is possible to remove nearly 25% of it's organic sulfur within 5 minutes at only 60{degrees}C with no significant loss of carbon. The extent of sulfur removal is very encouraging especially if the low temperatures and inexpensive reagents that were used are considered. 7 figs. 2 tabs.

• Research Organization: Southern Illinois Univ., Carbondale, IL (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: FG22-90PC90176
• OSTI ID: 5926274
• Report Number(s): DOE/PC/90176-T8; ON: DE91010507
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BITUMINOUS COAL
DESULFURIZATION
OXIDATION
ACETIC ACID
ASH CONTENT
CALORIFIC VALUE
CHEMICAL ANALYSIS
CHEMICAL REACTION KINETICS
COAL PREPARATION
DISSOLUTION
HYDROGEN PEROXIDE
MOISTURE
ORGANIC SULFUR COMPOUNDS
PARTICLE SIZE
PROGRESS REPORT
REMOVAL
SAMPLE PREPARATION
SULFUR
SULFUR CONTENT
VOLATILE MATTER
WATER
BLACK COAL
CARBONACEOUS MATERIALS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
COAL
COMBUSTION PROPERTIES
DOCUMENT TYPES
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
KINETICS
MATERIALS
MATTER
MONOCARBOXYLIC ACIDS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PEROXIDES
REACTION KINETICS
SIZE
010402* - Coal
Lignite
& Peat- Purification & Upgrading