Characteristics of American coals in relation to their conversion into clean energy fuels. Quarterly technical progress report, April--June 1976. [7 references; Penn State/ERDA coal data base activity]

Technical Report · Wed Sep 01 04:00:00 EDT 1976

DOI:https://doi.org/10.2172/7225682· OSTI ID:7225682

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

Thirteen coal samples were collected. Fifty-eight characterized coal samples and their analytical data were provided to other agencies; and 41 additional sets of analytical data were supplied upon request. The Penn State/ERDA Coal Data Base has been expanded to process several new types of information, including trace element analyses, fusion temperatures of coal ash, and char reactivity data. Fractionation data show that reactive and inert coal components can be separated, yielding a vitrinite concentrate and a fusinite concentrate. Rapid heat treatment of chars increases nitrogen and carbon dioxide surface areas while decreasing char particle size. Char reactivity to steam increases when large amounts of inorganic elements are ion exchanged with the raw lignites and lignite chars. Carbon deposition in char structures resulting from the cracking of volatilized hydrocarbons can retard gasification. Pyrite, gypsum, kaolinite, and calcite inhibit the gasification of a microporous Saran char in carbon dioxide at 900/sup 0/C.

• Research Organization: Pennsylvania State Univ., University Park (USA). Coal Research Section
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• OSTI ID: 7225682
• Report Number(s): FE-2030-4
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
010600 -- Coal
Lignite
& Peat-- Properties & Composition
013000 -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
ASHES
CALCITE
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CALCIUM SULFATES
CARBON
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CARBONATES
CHALCOGENIDES
CHARS
CHEMICAL ANALYSIS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
COAL PREPARATION
COMBUSTION
COMMINUTION
DATA ACQUISITION SYSTEMS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FRACTIONATION
FUELS
GASIFICATION
GEOLOGY
GYPSUM
HEAT TREATMENTS
INFORMATION CENTERS
IRON COMPOUNDS
IRON SULFIDES
KAOLINITE
KINETICS
MELTING POINTS
MINERALS
NONMETALS
ORES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PETROLOGY
PHYSICAL PROPERTIES
PYRITE
PYRITES
REACTION KINETICS
RESIDUES
SEPARATION PROCESSES
SILICATES
SILICON COMPOUNDS
SIZE
STEAM
SULFATES
SULFIDES
SULFUR COMPOUNDS
SULFUR ORES
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YIELDS