Investigation of vaporization and devolatilization of coal/water mixtures. Sixth quarterly report, August 1-October 31, 1983
The objective of this program is to develop the capabilities to predict the vaporization and devolatilization behavior of coal/water mixtures under conditions appropriate for spray combustion. The program is currently collecting data in an entrained flow coal reactor which has a fixed position, coal/water slurry spray injector and a movable product extractor. This reactor is being used to study the vaporization and pyrolysis of coal/water slurries. FT-IR is used for the analysis of the product gases, tars and chars to determine species evolution kinetics and kinetics of secondary reactions such as steam-char reactions, cracking, soot formation, char gasification, censophere formation and particle swelling, and char reactivity. Pyrolysis calculations have been performed to compare with the data for the Pittsburgh Seam coal/water slurry collected in the reactor system at furnace temperatures of 1100/sup 0/C and 1300/sup 0/C. The general behavior of the various species indicates more conversion of aliphatics to CO and CO/sub 2/, compared to dry coal pyrolysis. Chars from slurry pyrolyses at 1100/sup 0/C and 1300/sup 0/C show substantial agglomeration.
- Research Organization:
- Advanced Fuel Research, Inc., East Hartford, CT (USA)
- DOE Contract Number:
- AC22-82PC50254
- OSTI ID:
- 5433397
- Report Number(s):
- DOE/PC/50254-T6; ON: DE84005260
- Country of Publication:
- United States
- Language:
- English
Similar Records
Investigation of vaporization and devolatilization of coal/water mixtures. Third quarterly report, October 19, 1982-January 31, 1983
Investigation of vaporization and devolatilization of coal/water mixtures. Seventh quarterly report, November 1, 1983-January 31, 1984
Related Subjects
014000* -- Coal
Lignite
& Peat-- Combustion
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
DECOMPOSITION
DEVOLATILIZATION
DISPERSIONS
ENERGY SOURCES
EVAPORATION
FOSSIL FUELS
FUEL SLURRIES
FUELS
HYDROGEN COMPOUNDS
MATERIALS
MIXTURES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PYROLYSIS
SLURRIES
SPRAYS
SUSPENSIONS
THERMOCHEMICAL PROCESSES
WATER