Basic combustion and pollutant-formation processes for pulverized fuels. Quarterly technical progress report No. 3, 1 April 1981-30 June 1981

Technical Report · Wed Jul 15 00:00:00 EDT 1981

OSTI ID:6433344

Germane, G J; Smoot, L D

This contract study of basic combustion and pollutant formation processes for pulverized solid fossil fuels includes coal chars derived from pyrolysis or gasification processes, and coal-water mixtures. Utilization problems with these fuels such as flame stability, fuel handling, pollutant emission, and ash and slag formation in large-scale furnaces may be fundamentally addressed in laboratory reactors using properly scaled operating variables. Characterization of coal-water mixtures (CWM) was initiated to identify handling factors which could affect the combustion and pollutant formation. Methods of CWM preparation and utilization have been studied to help define the approach to be used for this research. Careful design and utilization strategies can improve lab-scale similarity in certain areas with potential commercial-scale applications. The CWM reactor modifications embody design features for detailed space-resolved combustion studies and fabrication has begun. The reactor has been designed to handle up to 45 kilograms (100 pounds) per hour of CWM, with precise control of the inside wall temperatures. Commercial and industrially produced chars were reviewed to determine their status and availability. Six chars were identified and requested. The literature survey was continued, determining those variables and factors that influence char reactivity. Provisions have been made to conduct characterization tests that will enable the selection of two of the six chars for the laboratory-scale combustor tests.

• Research Organization: Brigham Young Univ., Provo, UT (USA). Combustion Lab.
• DOE Contract Number: FG22-80PC30306
• OSTI ID: 6433344
• Report Number(s): DOE/PC/30306-T3; ON: DE81027279
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CHARS
COMBUSTION
CHEMICAL REACTORS
DESIGN
BENCH-SCALE EXPERIMENTS
MATHEMATICAL MODELS
FUEL SLURRIES
ASHES
COAL
FLAMES
MATERIALS HANDLING
MIXTURES
SLAGS
STABILITY
WATER
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
MATERIALS
OXIDATION
OXYGEN COMPOUNDS
PYROLYSIS PRODUCTS
RESIDUES
SLURRIES
SUSPENSIONS
THERMOCHEMICAL PROCESSES
014000* - Coal
Lignite
& Peat- Combustion