Injection of densely loaded flows into entrained-flow gasifiers. First quarterly progress report, October 1-December 31, 1985
The overall objective of this project is to develop improved understanding of the injection and mixing of densely loaded gas/solid mixtures into gas streams. The ultimate application of the results will be the development of improved injection and mixing configurations for entrained-flow coal gasifiers. In entrained-flow gasification, the injection and dispersion of heavily loaded mixtures of coal and gases is an important factor for overall reactor performance and the uniformity of coal processing. Poor disperison in a reactor has several adverse consequences. These include depressed particle heating rates, which affect critical devolatilization phenomena. Limited mixing also leads to increased reactor residence time requirements and nonuniformity of coal treatment. Information is needed to provide guidance for establishing reactor inlet configurations which will accelerate mixing and to facilitate modeling of such reactors. Data are available for systems which are more dilute than those used for entrained gasifiers, but special considerations lead to the desirability of using a minimum amount of injection flow in a gasifier. 54 refs.
- Research Organization:
- Science Applications International Corp., Chatsworth, CA (USA)
- DOE Contract Number:
- AC21-85MC22064
- OSTI ID:
- 5704241
- Report Number(s):
- DOE/MC/22064-T1; ON: DE86006897
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COAL
PNEUMATIC TRANSPORT
COAL GASIFICATION
FUEL FEEDING SYSTEMS
ENTRAINMENT
MATHEMATICAL MODELS
MIXING
CARBONACEOUS MATERIALS
ENERGY SOURCES
FOSSIL FUELS
FUEL SYSTEMS
FUELS
GASIFICATION
MATERIALS
THERMOCHEMICAL PROCESSES
TRANSPORT
010404* - Coal
Lignite
& Peat- Gasification