Reactivity of coal in direct hydrogenation processes: Progress report, March 1988--May 1988
Liquefaction reactivity measurements have been carried out for a suite of 9 high-volatile bituminous coals from the US. Conversion profiles were measured for the 9 coals in a tubing-bomb microautoclave reactor, under a hydrogen blanket (900 psi initial pressure) with 1-methylnaphthalene as the vehicle. Reactivity measurements were carried out at 425/degree/C, and at reaction times of 3, 5, 10, 20, and 40 minutes. Conversions to THF, toluene, and hexane solubles were determined for each set of reaction conditions. Kinetic modeling of the reactivity data demonstrated that a first-order irreversible model was adequate to describe the the relative reactivities of the coals. Correlations of reactivity as defined by the first-order rate constant for formation of toluene solubles were found with oxygen and carbon contents of the coal. Hexane solubles rate constant was found to be correlated with total sulfur and pyritic sulfur in the parent coals. A two-parameter correlation for the toluene solubles rate constant was found with organic sulfur and atomic oxygen-to-carbon. Ancillary studies determined that the catalysis by the walls of the reactor and particle size effects were negligible for these data. 23 refs., 21 figs., 9 tabs.
- Research Organization:
- Colorado School of Mines, Golden (USA). Dept. of Chemical Engineering and Petroleum Refining
- DOE Contract Number:
- FG22-85PC80907
- OSTI ID:
- 6693868
- Report Number(s):
- DOE/PC/80907-T10; ON: DE89003338
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALKANES
ALKYLATED AROMATICS
AROMATICS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL PROPERTIES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
CORRELATIONS
DATA
DOCUMENT TYPES
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
FURANS
HETEROCYCLIC COMPOUNDS
HEXANE
HYDROCARBONS
HYDROGENATION
INFORMATION
LIQUEFACTION
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PARTICLE SIZE
PROGRESS REPORT
SIZE
TETRAHYDROFURAN
THERMOCHEMICAL PROCESSES
TOLUENE
YIELDS