Coal ash behavior in reducing environments
This project is a four-year program designed to investigate the transformations and properties of coal ash in reducing environment systems. This project is currently midway through its third year. The work to date has emphasized four areas of research: (1) the development of quantitative techniques to analyze reduced species, (2) the production of gasification-type samples under closely controlled conditions, (3) the systematic gasification of specific coals to produce information about their partitioning during gasification, and (4) the study of the physical properties of ashes and slags under reducing atmospheres. The project is organized into three tasks which provide a strong foundation for the project. Task 1, Analytical Methods Development, has concentrated on the special needs of analyzing samples produced under a reducing atmosphere as opposed to the more often studied combustion systems. Task 2, Inorganic Partitioning and Ash Deposition, has focused on the production of gasification-type samples under closely controlled conditions for the study of inorganic partitioning that may lead to deposition. Task 3, Ash and Slag Physical Properties, has made large gains in the areas of sintering and strength development of coal ashes under reducing atmospheres for the evaluation of deposition problems. Results are presented for all three tasks.
- Research Organization:
- North Dakota Univ., Grand Forks, ND (United States). Energy and Environmental Research Center
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC21-86MC10637
- OSTI ID:
- 10185671
- Report Number(s):
- DOE/MC/10637--94/C0364; CONF-9406131--16; ON: DE95000573; BR: 400408000/AA0505000
- Country of Publication:
- United States
- Language:
- English
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Coal ash behavior in reducing environments
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Related Subjects
010404
010800
ASHES
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
COAL GASIFICATION
DEPOSITION
DESIGN
EXPERIMENTAL DATA
GAS GENERATORS
GASIFICATION
MATHEMATICAL MODELS
MEASURING METHODS
MINERALOGY
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SAMPLE PREPARATION
SCANNING ELECTRON MICROSCOPY
SINTERING
THERMAL GRAVIMETRIC ANALYSIS
VISCOSITY
WASTE MANAGEMENT
X-RAY SPECTROSCOPY