Characteristics of American coals in relation to their conversion into clean energy fuels. Quarterly technical progress report, July--September 1976. [15 refs]

Technical Report · Wed Dec 01 04:00:00 EST 1976

DOI:https://doi.org/10.2172/7303670· OSTI ID:7303670

Spackman, W.; Davis, A.; Walker, P. L.; Lovell, H. L.; Essenhigh, R. H.; Vastola, F. J.; Given, P. H.

Under Facet I, 158 coal samples have been added to the Penn State/ERDA Sample Bank. Sixty-nine sets of analytical data and one characterized coal sample were provided upon request to other agencies. Facet IV-A research on reactor development and operation shows that the gasification zone of a fuel bed is not diffusionally controlled. Pyrolysis of pulverized coal occurs under essentially isothermal conditions within the laminar flow furnace. Methanol densities of chars, work on which has recently begun under Facet IV-B, are found to be quite similar to helium densities. Small angle x-ray scattering studies (Facet IV-B) show that the internal pore structure of coal chars changes with rank of the starting coal precursor and the maximum temperature at which the char is prepared. Removal of inorganic impurities from chars by acid washing significantly reduces the extent of carbon deposition as a result of methane cracking. Reactivity and surface area are also affected by mineral matter removal. Furthermore, ion exchange increases char reactivity to steam. Under Facet V-B, the addition of coal to water-oil emulsions has been found to increase the heat absorbed by the water load on the furnace to levels comparable to that of fuel oil no. 2.

• Research Organization: Pennsylvania State Univ., University Park (USA). Coal Research Section
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• OSTI ID: 7303670
• Report Number(s): FE-2030-5
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
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& Peat-- Gasification
010406 -- Coal & Coal Products-- Pyrolysis & Cracking-- (-1987)
010600 -- Coal
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014000 -- Coal
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ALCOHOLS
CARBONACEOUS MATERIALS
CHARS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COAL
COAL FINES
COAL GASIFICATION
COAL RANK
COLLOIDS
COMBUSTION
CRYOGENIC FLUIDS
DECOMPOSITION
DENSITY
DISPERSIONS
ELEMENTS
EMULSIONS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL OILS
FUEL SLURRIES
FUELS
GASIFICATION
HELIUM
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
IMPURITIES
INFORMATION SYSTEMS
METHANOL
MIXTURES
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
POROSITY
PURIFICATION
PYROLYSIS
RARE GASES
REMOVAL
SLURRIES
STEAM
SUSPENSIONS
THERMOCHEMICAL PROCESSES
WATER