Reactivity of coal in direct hydrogenation processes: Final report
This research program consisted of two facets dealing with fundamental and applied studies on coal reactivity under direct hydroliquefaction conditions. The first facet was concerned with an investigation of the relationship between coal reactivity and coal properties. Data on the rate and extent of direct coal hydroliquefaction for 5 bituminous coals from the Argonne Premium Sample Bank were measured. Data on rate of conversion of coal to THF and toluene solubles were modeled with a simple reversible rate expression, and activation energies for conversion to each solvent solubility class determined. Data on carbon and proton distribution in the coals were obtained by /sup 1/H-NMR and /sup 13/C-NMR. A strong correlation of activation energy with the aliphatic hydrogen content of the coal was found for conversion to THF solubles. The second facet of the program dealt with a mechanistic study of the effect of hydrogen on the rate and extent of coal liquefaction. The objective was to investigate the effect of radical quenching by aromatic and hydroaromatic vehicles on the activity and selectivity of hydrogen under conditions relevant to direct coal hydroliquefaction. The experimental portion of the program consisted of a series of runs on a model compound system, followed by experiments utilizing 5 bituminous coals from the Argonne Premium Coal sample bank. 45 refs., 14 figs., 17 tabs.
- Research Organization:
- Colorado School of Mines, Golden, CO (USA). Dept. of Chemical Engineering and Petroleum Refining
- DOE Contract Number:
- FG22-85PC80907
- OSTI ID:
- 5817615
- Report Number(s):
- DOE/PC/80907-T11; ON: DE89016406
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ACTIVATION ENERGY
ALKYLATED AROMATICS
AROMATICS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
CORRELATIONS
DECOMPOSITION
DOCUMENT TYPES
ENERGY
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGENATION
LIQUEFACTION
MATERIALS
ORGANIC COMPOUNDS
PROGRESS REPORT
PYROLYSIS
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES
TOLUENE
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ACTIVATION ENERGY
ALKYLATED AROMATICS
AROMATICS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
CORRELATIONS
DECOMPOSITION
DOCUMENT TYPES
ENERGY
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGENATION
LIQUEFACTION
MATERIALS
ORGANIC COMPOUNDS
PROGRESS REPORT
PYROLYSIS
TEMPERATURE EFFECTS
THERMOCHEMICAL PROCESSES
TOLUENE