Sulfur-reduction potential of the coals of Ohio

Technical Report · Tue Mar 01 04:00:00 EST 1983

OSTI ID:6228947

Wizzard, J T; Cavallaro, J A; Deurbrouck, A W

This report presents the results of a washability study of 148 raw coal channel samples with an emphasis on sulfur reduction. These raw coals contained on the average 13.1 percent ash, 2.47 percent pyritic sulfur, 3.86 percent total sulfur, 12,585 Btu/lb, and 6.2 pounds of SO/sub 2/ emissions per million Btu, on a moisture-free basis. The complete washability data and ultimate-proximate data are presented for these samples. Each individual washability analysis is presented in Appendix A. Statistical evaluations of the washability data and ultimate-proximate analyses are presented on a coalbed basis, whenever there are six or more samples from a given coalbed. An additional evaluation is included showing the composite data interpolated at Btu recovery levels of 50, 60, 70, 80, 90, and 100 percent. Potential sulfur dioxide (SO/sub 2/) emissions are calculated for raw and clean coal fractions. These SO/sub 2/ emissions are then compared to EPA regulations governing New Stationary Sources Performance Standards. Graphical representations are given for various coal characteristics of both raw and washed coal fractions for all coalbeds with six or more samples. For coalbeds with 20 or more samples, goodness-of-fit tests were made comparing SO/sub 2/ distributions with both normal and log-normal distributions. Confidence intervals and tolerance limits are calculated and illustrated for the SO/sub 2/ emission values as a function of specific gravity for these coalbeds. In general, ash reduction, pyritic sulfur reduction, total sulfur reduction, and SO/sub 2/ emissions reduction increase as the coal is crushed to smaller top sizes and as the coal is cleaned at lower specific gravities. This report presents the reduction curves for the major coalbeds in Ohio. 39 figures, 13 tables.

• Research Organization: USDOE Pittsburgh Energy Technology Center, PA
• OSTI ID: 6228947
• Report Number(s): DOE/PETC/TR-83/7; ON: DE83012219
• Country of Publication: United States
• Language: English

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54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
ASHES
CARBON
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL COMPOSITION
CLEANING
COAL
COAL DEPOSITS
COMMINUTION
CONTROL
CRUSHING
DATA
ELEMENTS
EMISSION
ENERGY SOURCES
EXPERIMENTAL DATA
FEDERAL REGION V
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
HYDROGEN
INFORMATION
IRON COMPOUNDS
IRON SULFIDES
MATERIALS
MATTER
MINERAL RESOURCES
MINERALS
MOISTURE
NITROGEN
NONMETALS
NORTH AMERICA
NUMERICAL DATA
OHIO
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POLLUTION CONTROL
PYRITE
REMOVAL
RESIDUES
RESOURCES
STATISTICAL DATA
SULFIDE MINERALS
SULFIDES
SULFUR
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THEORETICAL DATA
TRANSITION ELEMENT COMPOUNDS
USA
VOLATILE MATTER
WASHING