Comprehensive report to Congress: Clean Coal Technology Program
A project is described which will demonstrate an innovative technology to enhance the thermal and environmental value of low-rank subbituminous and lignite coals. This technology consists of supplying raw coal to a first-stage, vibratory fluidized-bed reactor, which removes loosely held water from the coal. The coal then enters a second-stage, vibratory fluidized-bed reactor, where tightly held (chemically bound) water, carboxyl groups, and volatile sulfur compounds are removed. The coal is then cooled in a vibratory fluidized-bed cooler. Coal exiting from the cooler is transported through vibrating screens and fluidized-bed separators for removal of pyritic sulfur and ash-forming minerals. Low-rank western coals normally contain 25 to 55% moisture and 0.5 to 1.5% sulfur, and have heating values of 5500 to 9000 Btu/lb. The net result of WECo's Advanced Coal Conversion Process is that such coals will be upgraded. Moisture content will be reduced to as low as 1%, sulfur content will be reduced to as low as 0.3%, and the heating value will be increased to about 12,000 Btu/lb. 4 figs.
- Research Organization:
- USDOE Assistant Secretary for Fossil Energy, Washington, DC (USA)
- Sponsoring Organization:
- DOE/FE
- OSTI ID:
- 6845128
- Report Number(s):
- DOE/FE-0192P; ON: DE90013559
- Country of Publication:
- United States
- Language:
- English
Similar Records
[Advanced Coal Conversion Process Demonstration Project]. Technical progress report, April 1, 1991--June 30, 1991
Advanced coal conversion process demonstration. Progress report, January 1, 1992--March 31, 1992
Related Subjects
COAL
DESULFURIZATION
WATER REMOVAL
CHEMICAL REACTORS
COST
DEMONSTRATION PROGRAMS
FLUIDIZED BEDS
PROGRAM MANAGEMENT
US CLEAN COAL TECHNOLOGY PROGRAM
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MANAGEMENT
MATERIALS
REMOVAL
010300* - Coal
Lignite
& Peat- Preparation- (1987-)