Investigation of pyrite as a contributor to slagging in eastern bituminous coals. Quarterly progress report 9, October 1-December 31, 1983

Technical Report · Fri Jun 01 04:00:00 EDT 1984

DOI:https://doi.org/10.2172/7089846· OSTI ID:7089846

Bryers, R. W.

The objective of this program is to examine slags formed as a result of firing coals with varying concentration levels, size distribution, and orientation of pyrite with regard to mineral matter in the coal in a laboratory furnace. The program tasks are: (1) selection of eight candidate coals; (2) chemical characterization of the coal samples and identification of the pyrite size, distribution, and orientation with respect to other mineral matter and concentration levels; (3) testing of the candidate coals in a laboratory furnace; (4) chemical and physical characterization of the slag and fly ash samples created by the impurities in the coal sample; (5) influence of coal beneficiation on furnace slagging; and (6) analysis of data and identification of parameters influencing the contribution of pyrite to slagging problems. Washing of the Upper Freeport coal from Indiana County, Pennsylvania, was completed by the last quarter of 1983. The washed product was characterized for mineral content, and a combustion test was performed. Kentucky No. 9 from Henderson County, Kentucky, selected as the sixth coal to be investigated, was characterized using size and gravity fractionation techniques and was combusted in the laboratory furnace to evaluate its slagging and fouling potential. The remaining two coals to be characterized and combusted were identified as Illinois No. 5 and Lower Kittanning from Clarion County, Pennsylvania. 80 figures, 27 tables.

• Research Organization: Foster Wheeler Development Corp., Livingston, NJ (USA)
• DOE Contract Number: AC22-81PC40268
• OSTI ID: 7089846
• Report Number(s): FWC/FWDC/TR-84/17; ON: DE84013997
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
013000 -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
014000 -- Coal
Lignite
& Peat-- Combustion
ASHES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CLEANING
COAL
COMBUSTION
DATA
ELECTRON MICROSCOPY
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FOULING
FUELS
FURNACES
INFORMATION
IRON COMPOUNDS
IRON SULFIDES
MATERIALS
MICROSCOPY
MINERALOGY
MINERALS
MORPHOLOGY
NUMERICAL DATA
OXIDATION
PYRITE
RESEARCH PROGRAMS
RESIDUES
SCANNING ELECTRON MICROSCOPY
SLAGS
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
WASHING