Coal cleaning test facility campaign report No. 2: Robinson seam subbituminous coal
Campaign Report No. 2, issued by EPRI's Coal Cleaning Test Facility (CCTF), presents the cleanability characteristics of Robinson Seam coal. In May, 1983, Central Illinois Light Company (CILCO) donated 300 tons of this Montana subbituminous coal to EPRI. CILCO was burning uncleaned Robinson Seam coal at their E.D. Edwards Station to comply with an Illinois state SO/sub 2/ emission limit of 1.8 lb/MBtu. However, due to severe slagging in the steam generators, CILCO has stopped burning the coal and switched to a low-sulfur, bituminous coal. EPRI's characterization of Robinson Seam coal determined raw-coal characteristics, sulfur and ash liberation potential, and the change in combustion characteristics caused by cleaning the coal in three different flowsheets. For this coal, sulfur reduction and slagging index improvement was of particular interest because of CILCO's known slagging problems. The CCTF concentrating-table flowsheet test demonstrated, using commercial-scale equipment, that cleaning reduced the raw-coal's 1.64 lb/MBtu SO/sub 2/ emission potential to 0.70 lb/MBtu at an energy recovery of 94 percent. The CCTF tests showed that crushing the coal to 3/4-in. or 3/8-in. topsize did not liberate (unlock from coal particles) additional amounts of ash or sulfur. The CCTF tests demonstrated that cleaning improved the raw-coal's slagging index from ''severe'' classification at 2008/sup 0/F to greater than 2100/sup 0/F, which is classified as ''high''. 9 refs.
- Research Organization:
- Kaiser (Raymond) Engineers, Inc., Homer City, PA (USA); Science Applications International Corp., Homer City, PA (USA)
- OSTI ID:
- 5504115
- Report Number(s):
- EPRI-CS-4081; ON: TI85920758
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
BOILERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CLEANING
COAL
COAL PREPARATION
CONCENTRATORS
CYCLONE SEPARATORS
DATA
DEASHING
DESULFURIZATION
DIAGRAMS
EMISSION
ENERGY LOSSES
ENERGY SOURCES
EQUIPMENT
EXPERIMENTAL DATA
FLOWSHEETS
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
INERTIAL SEPARATORS
INFORMATION
LOSSES
MATERIALS
MOISTURE
NUMERICAL DATA
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
RECOMMENDATIONS
SCREENS
SEPARATION EQUIPMENT
SUBBITUMINOUS COAL
TABLES
TEST FACILITIES
THERMAL POWER PLANTS