Enhanced catalysis by solvent improvement. Quarterly technical progress report, 1 October-31 December 1983
This report describes the results from coal pretreatment and pretreatment followed by liquefaction experiments. The coal pretreatment techniques discussed in this report include grinding of Illinois Number 6 coal in the presence of inert gas, air, alcohol, base liquefaction solvent, modified solvent, and toluene. The use of base liquefaction solvent to grind coal prior to liquefaction was markedly detrimental to oil production. However, grinding coal in the presence of modified solvent prior to liquefaction showed marginally higher oil production than that noted with liquefaction of coal pre-ground in helium. The use of elevated temperatures during grinding of coal in the presence of any liquefaction solvent showed insignificant improvement in oil yields over that noted at low temperatures. Grinding coal in air was quite detrimental to oil yield when liquefaction was performed in the presence of base liquefaction solvent. On the contrary, liquefaction of air ground coal with modified solvent showed significantly higher oil yield compared to liquefaction in the presence of base liquefaction solvent. Grinding of coal in the presence of ethyl alcohol as well as extraction of coal with alcohol prior to liquefaction in the presence of either base liquefaction solvent or modified solvent was quite detrimental to both oil production and coal conversion. Finally, the use of toluene to grind coal in the presence of molybdenum hexacarbonyl resulted in significantly higher oil production upon liquefaction using modified solvent compared to the oil yield obtained by grinding coal in modified solvent containing either oil-soluble molybdenum catalyst or molybdenum added as molybdenum hexacarbonyl. 3 refs., 6 figs., 10 tabs.
- Research Organization:
- Air Products and Chemicals, Inc., Allentown, PA (USA)
- DOE Contract Number:
- AC22-82PC50003
- OSTI ID:
- 7257263
- Report Number(s):
- DOE/PC/50003-24; ON: DE87001643
- Country of Publication:
- United States
- Language:
- English
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Enhanced catalysis by solvent improvement. Quarterly technical progress report, 1 April-30 June 1983
Enhanced catalysis by solvent improvement. Quarterly technical progress report, 1 January-31 March 1984
Related Subjects
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AIR
ALCOHOLS
ALKYLATED AROMATICS
AROMATICS
CARBONACEOUS MATERIALS
CARBONYLS
CATALYSTS
CATALYTIC EFFECTS
COAL
COAL LIQUEFACTION
COMMINUTION
COMPLEXES
DATA
ELEMENTS
ENERGY SOURCES
ETHANOL
EXPERIMENTAL DATA
FLUIDS
FOSSIL FUELS
FUELS
GASES
GRINDING
HELIUM
HIGH TEMPERATURE
HYDROCARBONS
HYDROXY COMPOUNDS
INFORMATION
IRON
LIQUEFACTION
MACHINING
MATERIALS
MEDIUM PRESSURE
MEDIUM TEMPERATURE
METALS
MODIFICATIONS
MOLYBDENUM
MOLYBDENUM COMPLEXES
NONMETALS
NUMERICAL DATA
OIL YIELDS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PARTICLE SIZE
RARE GASES
RESEARCH PROGRAMS
SIZE
SOLVENTS
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE
TOLUENE
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS
YIELDS