Coking properties of coal under pressure and their influence on moving-bed gasification. Final report
The coking properties of seven bituminous coals, including three Eastern US coals, one Midwestern US coal, a Western US coal and two from the UK were studied with respect to the possible utilization of these coals in moving bed gasifier systems. Complete physical, chemical and petrographic analyses were obtained for each coal in addition to the highly specialized CCDC simulated gasifier coking test data. The effects of total pressure, hydrogen partial pressure, heating rate and the addition of gob and tar on the fluidity and swelling properties of each coal was studied. Samples of each coal were shock heated under pressure to simulate coking in the top of a Lurgi gasifier. The resultant cokes were tested for various physical properties and the product yields were determined. Gas release patterns during pressurized pyrolysis were obtained in several instances. The data obtained in this work should provide a valuable data base for future gasifier feedstock evaluation programs.
- Research Organization:
- Conoco Coal Development Co., Library, PA (USA). Research Div.
- OSTI ID:
- 5010641
- Report Number(s):
- EPRI-AP-2535; ON: DE82906456
- Resource Relation:
- Other Information: Portions of document are illegible
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COAL
COKING
DEVOLATILIZATION
PYROLYSIS
PRESSURE DEPENDENCE
BITUMINOUS COAL
COAL GASIFICATION
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
HEATING RATE
PLASTICITY
SWELLING
YIELDS
BLACK COAL
CARBONACEOUS MATERIALS
CARBONIZATION
CHEMICAL REACTIONS
DATA
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
INFORMATION
MATERIALS
MECHANICAL PROPERTIES
NUMERICAL DATA
THERMOCHEMICAL PROCESSES
010406* - Coal & Coal Products- Pyrolysis & Cracking- (-1987)
010401 - Coal & Coal Products- Carbonization- (-1987)
010404 - Coal
Lignite
& Peat- Gasification