Reactions governing coal solubilization. First quarterly progress report, July 15, 1983-October 15, 1983. [Fluorenone]
Work during the first quarter concerned the hydrogen atom abstraction reactions of macerals. The influence of macerals from several bituminous coals on the hydrogen-deuterium exchange reaction between tetralin-d/sub 12/ and diphenylmethane and on the reduction of fluorenone have been studied. The sporinite-rich exinites are more effective promoters of the exchange reaction than the corresponding vitrinites or alginite. The semifusinite-rich inertinites are even less effective promoters of the exchange reaction. More important, they are less selective in reactions with tetralin. The presence of sulfur containing compounds in the macerals has a notable influence on their reactivity in hydrogen transfer reactions. The reactivity pattern for the reduction of fluorenone - sporinite > vitrinite > alginite > semifusinite > fusinite > resinite - defines a bell shaped dependence on the H/C ratio of the maceral and presumably reflects the quantity of readily oxidized hydroaromatic compounds in the maceral. The differences in the effectiveness of the macerals depends in part upon their ability to initiate the reduction of the ketone and in part upon the facility with which they undergo oxidation. As a consequence, there may be synergistic interactions between the components of the different macerals in oxidative hydrogen transfer processes.
- Research Organization:
- Chicago Univ., IL (USA)
- DOE Contract Number:
- FG22-83PC60796
- OSTI ID:
- 5516965
- Report Number(s):
- DOE/PC/60796-1; ON: DE84002764
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400303 -- Organic Chemistry-- Isotope Exchange & Isotope Separation-- (-1987)
AROMATICS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHEMISTRY
COAL
COAL LIQUEFACTION
COMPARATIVE EVALUATIONS
DEUTERIUM
DEUTERIUM COMPOUNDS
DISSOLUTION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROGEN TRANSFER
ISOTOPES
ISOTOPIC EXCHANGE
KETONES
LIGHT NUCLEI
LIQUEFACTION
MACERALS
MATERIALS
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
REDUCTION
RESEARCH PROGRAMS
STABLE ISOTOPES
SYNERGISM
TETRALIN
THERMOCHEMICAL PROCESSES