A modeling study of pulverized coal combustion in CO/sub 2//O/sub 2/ atmospheres
In this modeling study, a one-dimensional coal combustion or gasification (1-DICOG) computer code was used to simulate differences in the combustion performance of pulverized coal resulting from the substitution of various CO/sub 2//O/sub 2/ mixtures as a replacement for air in the combustion process. Predictions using this simple, one-dimensional model were compared with actual performance data from tests designed by Argonne National Laboratory and conducted by Battelle Columbus Division. The resulting comparisons of predicted and measured data for all test cases show that the observed trends of distributions of temperature and of species concentrations are predictable; numerical discrepancies between predictions and measurements of these data are attributed to limitations of the 1-DICOG computer code. Coal burnout in the test combustor was also analyzed. This information is required to determine axial burnout variation. The study finds that the combustion processes of pulverized coal can be completed in an atmosphere of O/sub 2/ and O/sub 2/ over a range of CO/sub 2/-to-O/sub 2/ mole ratios between 2.23 and 3.65. The report also describes results obtained using PCGC-2, a two-dimensional model. Comparisons between the results of 1-DICOG and PCGC-2 are presented. The latter are more detailed and agree better with experimental observations. 14 refs., 61 figs., 21 tabs.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 7054706
- Report Number(s):
- ANL/CNSV-57; ON: DE87003284
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Computer simulation of pulverized coal combustion in various CO/sub 2//O/sub 2/ atmospheres and in air
Computer simulation of pulverized coal combustion in various CO/sub 2//O/sub 2/ atmospheres and in air
Related Subjects
02 PETROLEUM
54 ENVIRONMENTAL SCIENCES
CARBON DIOXIDE
GREENHOUSE EFFECT
RECYCLING
WASTE PRODUCT UTILIZATION
COAL
COMBUSTION
CONTROLLED ATMOSPHERES
MATHEMATICAL MODELS
COMPUTER CODES
D CODES
ENHANCED RECOVERY
ONE-DIMENSIONAL CALCULATIONS
OXYGEN
P CODES
PETROLEUM
ATMOSPHERES
CARBON COMPOUNDS
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
NONMETALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
RECOVERY
THERMOCHEMICAL PROCESSES
014000* - Coal
Lignite
& Peat- Combustion
020300 - Petroleum- Drilling & Production
500400 - Environment
Atmospheric- Thermal Effluents Monitoring & Transport- (-1989)