Copper catalyzed aging reactions of a SRC II middle distillate
The molecular types of compounds responsible for the viscosity changes evident in aging of coal liquids have been determined and reactions are postulated to explain the presence of these types of compounds. SRC II middle distillate from Illinois No. 6 coal was oxidized in the presence of copper shavings to accelerate the degradation, and the aged liquid was separated into pentane-soluble and pentane-insoluble components. Analysis of both fractions indicated that oxygen-and nitrogen-containing compounds in the coal liquid are concentrated in the pentane-insoluble fraction. The viscosity and atomic C/H ratio of the pentane-soluble fraction of the aged coal liquid are similar to those of the pentane-unaged coal liquid, but the nitrogen and oxygen contents are less. These results suggest that at least one of the aging reactions is the selective polymerization of phenolic compounds. Incorporation of oxygen and polymerization of nitrogen compounds also occurs. (BLM)
- Research Organization:
- Duquesne Univ., Pittsburgh, PA
- OSTI ID:
- 6231357
- Report Number(s):
- CONF-810813-(Absts)
- Journal Information:
- Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States), Journal Name: Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States) Vol. 26:3; ISSN ACFPA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Rheology and stability of SRC residual fuel oils - storage evaluation. SRC-1 quarterly technical report, October-December 1982. Supplement
Hydrogen bonding in asphaltenes and coal. Quarterly report for April 1, 1979--June 30, 1979
Related Subjects
010600* -- Coal
Lignite
& Peat-- Properties & Composition
AGING
AROMATICS
CATALYSIS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COAL LIQUIDS
COPPER
DATA
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
HYDROXY COMPOUNDS
INFORMATION
LIQUIDS
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
PHENOLS
POLYMERIZATION
TRANSITION ELEMENTS
VISCOSITY