Injection of densely loaded flows into entrained-flow gasifiers. Second quarterly report, January 1-March 31, 1986
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 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 dispersion 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. Progress reports are presented for the following tasks: (1) test plan; (2) literature search; (3) theoretical investigation; and (4) experimental investigation. 11 refs., 1 fig.
- Research Organization:
- Science Applications International Corp., Chatsworth, CA (USA)
- DOE Contract Number:
- AC21-85MC22064
- OSTI ID:
- 7257331
- Report Number(s):
- SAIC/QPR-690-2; ON: DE86010767
- Country of Publication:
- United States
- Language:
- English
Similar Records
Injection of densely loaded flows into entrained-flow gasifiers: Sixth quarterly report, January 1, 1987-March 31, 1987
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Related Subjects
COAL
PNEUMATIC TRANSPORT
COAL GASIFICATION
CHEMICAL REACTORS
FUEL FEEDING SYSTEMS
ENTRAINMENT
MATHEMATICAL MODELS
MIXING
RESEARCH PROGRAMS
CARBONACEOUS MATERIALS
ENERGY SOURCES
FOSSIL FUELS
FUEL SYSTEMS
FUELS
GASIFICATION
MATERIALS
THERMOCHEMICAL PROCESSES
TRANSPORT
010404* - Coal
Lignite
& Peat- Gasification