Characteristics of American coals in relation to their conversion into clean energy fuels. Quarterly technical progress report, July--September 1975

Technical Report · Mon Dec 01 04:00:00 EST 1975

DOI:https://doi.org/10.2172/7354340· OSTI ID:7354340

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

Twenty-one coal samples have been collected and characterized. Sixty coals have been provided to other agencies at their request. The capability of controlling coal characteristics during preparation is being developed: large variations in volatile content occur within a given raw coal but, by controlling the preparation, a uniform product with the devised specifications can be produced. Studies have begun on the suitability of various coals and cokes for use in pressurized fixed bed gasifiers. Preliminary studies are being carried out on the feasibility of applying small angle x-ray scattering to the characterization of coal chars. Reactivity profiles and parameters for chars in air are markedly dependent upon the gaseous flow system used, indicating that char reactivity is determined by partial pressure of the reacting gas. Reactivities have been maximized by keeping the heat treatment temperature as low as possible, and allowing no soak time. The minerals kaolinite, dolomite, siderite, calcite, and pyrite are found not to be catalysts for the char-air reaction at 550/sup 0/C. The addition of coal to an oil-water-air emulsion considerably increases the heat flux from the flame to the water tubes during combustion. (auth)

• Research Organization: Pennsylvania State Univ., University Park (USA). Coal Research Section
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• OSTI ID: 7354340
• Report Number(s): FE-2030-1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010400* -- Coal
Lignite
& Peat-- Processing
010600 -- Coal
Lignite
& Peat-- Properties & Composition
013000 -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
ANTHRACITE
BLACK COAL
CALCITE
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATE ROCKS
CARBONATES
CATALYSTS
CHALCOGENIDES
CHARS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
COAL PREPARATION
COKE
COLLOIDS
COMBUSTION
COMMINUTION
CONTROL
DENSITY
DISPERSIONS
DOLOMITE
ELECTROMAGNETIC RADIATION
ELEMENTS
EMULSIONS
ENERGY SOURCES
FLUIDIZED BED
FOSSIL FUELS
FUELS
GASIFICATION
GEOLOGY
HEAT TREATMENTS
ION EXCHANGE
IONIZING RADIATIONS
IRON CARBONATES
IRON COMPOUNDS
IRON ORES
IRON SULFIDES
KAOLINITE
KINETICS
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERALS
NONMETALS
OILS
OPTICAL PROPERTIES
ORES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PARTICLE SIZE
PETROLOGY
PHYSICAL PROPERTIES
POROSITY
PYRITE
PYRITES
QUALITY CONTROL
RADIATIONS
REACTION KINETICS
RESERVOIR ROCK
ROCKS
SCATTERING
SEPARATION PROCESSES
SIDERITE
SILICATES
SILICON COMPOUNDS
SIZE
SMALL ANGLE SCATTERING
STABILITY
SULFIDES
SULFUR COMPOUNDS
SULFUR ORES
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
X RADIATION