Pelletization of fine coals. Final report
Coal is one of the most abundant energy resources in the US with nearly 800 million tons of it being mined annually. Process and environmental demands for low-ash, low-sulfur coals and economic constraints for high productivity are leading the coal industry to use such modern mining methods as longwall mining and such newer coal processing techniques as froth flotation, oil agglomeration, chemical cleaning and synthetic fuel production. All these processes are faced with one common problem area--fine coals. Dealing effectively with these fine coals during handling, storage, transportation, and/or processing continues to be a challenge facing the industry. Agglomeration by the unit operation of pelletization consists of tumbling moist fines in drums or discs. Past experimental work and limited commercial practice have shown that pelletization can alleviate the problems associated with fine coals. However, it was recognized that there exists a serious need for delineating the fundamental principles of fine coal pelletization. Accordingly, a research program has been carried involving four specific topics: (i) experimental investigation of coal pelletization kinetics, (ii) understanding the surface principles of coal pelletization, (iii) modeling of coal pelletization processes, and (iv) simulation of fine coal pelletization circuits. This report summarizes the major findings and provides relevant details of the research effort.
- Research Organization:
- California Univ., Berkeley, CA (United States). Dept. of Materials Science and Mineral Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-89PC89766
- OSTI ID:
- 171245
- Report Number(s):
- DOE/PC/89766-1; ON: DE96004073; TRN: AHC29602%%7
- Resource Relation:
- Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
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Pelletization of fine coals
Pelletization of fine coals. Technical progress report, March 1, 1992--May 31, 1992
Related Subjects
COAL PREPARATION
KINETICS
MATHEMATICAL MODELS
SIMULATORS
COAL FINES
PELLETIZING
ANTHRACITE
BITUMINOUS COAL
PROGRESS REPORT
SAMPLE PREPARATION
PARTICLE SIZE
MOISTURE
DODECANE
ADDITIVES
DEXTRIN
WEATHERING
FRAGMENTATION
C CODES
RECOMMENDATIONS
PHYSICAL PROPERTIES
CHEMICAL PROPERTIES
EXPERIMENTAL DATA