Ultrafine coal single stage dewatering and briquetting process. Technical report, September 1--November 30, 1994
- Univ. of Missouri, Rolla, MO (United States). Dept. of Mining Engineering
- Southern Illinois Univ., Carbondale, IL (United States). Dept. of Mining Engineering
It is well known that a large portion of the pyrite particles in the coal seams of the Illinois Basin, are finely disseminated within the coal matrix. In order to liberate these micron size pyrite particles, one must use a fine grinding operation. The ultrafine coal particles that are produced are difficult to dewater and they create problems in coal transportation as well as in its storage and handling at utility plants. The objective of this research project is to combine ultrafine coal dewatering and briquetting processes into a single stage operation. This will be accomplished by the use of bitumen based emulsions for dewatering and a compaction device for briquetting. During this reporting period, two types of coal samples have been tested for use in the dewatering and briquetting processes. These tests were carried out in conjunction with a selected hydrophobic binder as the dewatering reagent and an uniaxial hydraulic press. The influence of compaction pressure and binder concentration (2 to 5%) on the performance of coal pellets have been evaluated in terms of their water and wear resistance. A laboratory scale ultrafine coal dewatering and briquetting extruder that can be operated continuously for coal pellets fabrication, has been designed and built, and will be available for testing in the next quarter.
- Research Organization:
- Illinois State Geological Survey, Champaign, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States); Illinois Clean Coal Inst., Carterville, IL (United States)
- DOE Contract Number:
- FC22-92PC92521
- OSTI ID:
- 28253
- Report Number(s):
- DOE/PC/92521--T207; ON: DE95008007
- Country of Publication:
- United States
- Language:
- English
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Ultrafine coal single stage dewatering and briquetting process. Technical report, December 1, 1994--February 28, 1995
Ultrafine coal single stage dewatering and briquetting process
Related Subjects
BITUMINOUS COAL
BRIQUETS
BRIQUETTING
CHEMICAL COMPOSITION
COAL FINES
COAL PREPARATION
COMMINUTION
DEASHING
EXPERIMENTAL DATA
FABRICATION
HYDRAULIC CONDUCTIVITY
MATERIALS HANDLING EQUIPMENT
MECHANICAL TESTS
PARTICLE SIZE
PROGRESS REPORT
WATER REMOVAL
WEAR RESISTANCE
WETTABILITY