Hydrogen bonding in asphaltenes and coal. Final report
The objective of this project is to investigate the nature and strength of hydrogen bonding and other molecular interreactions in coal liquids and their fractions. Determinations are made of the molecular interactions involving the preasphaltene, asphaltene and oil fractions, together with their separated fractions, obtained from coal liquids after hydroprocessing under different processing conditions and accelerated aging. NMR, IR, GC/MS, calorimetric, GPC, viscosity methods are used to determine structural changes caused by upgrading and aging of coal liquids. Summary of activities are presented for the following: (1) 600-MHz proton magnetic resonance study of coal-derived liquids; (2) aging of SRC liquids; (3) analysis of upgraded SRC liquid products; (4) oxidation degradation of coal liquids; (5) aging of SRC II middle distillates from Illinois No. 6 coal; (6) gas chromatographic investigation of the retention characteristics of underivatized phenols on Superox-20M; (7) effects of various phenol additives on viscosity of SRC blends; (8) GLC meeting for separation of complex mixtures of phenols from coal liquefaction products; (9) upgraded SRC-II and H-coal liquid products; (10) light scattering study of aging of coal liquids; (11) evidence of phenolic oxidation coupling in coal liquids; and (12) hydrogen bonding study of the acid and base fractions separated from SRC II middle distillates.
- Research Organization:
- Duquesne Univ., Pittsburgh, PA (USA). Dept. of Chemistry
- DOE Contract Number:
- AC22-80PC30252
- OSTI ID:
- 6958204
- Report Number(s):
- DOE/PC/30252-T12; ON: DE84011624
- Country of Publication:
- United States
- Language:
- English
Similar Records
Hydrogen bonding in asphaltenes and coal liquids. Quarterly report, November 1, 1980-January 31, 1981
Hydrogen bonding in asphaltenes and coal liquids. Quarterly report for the period May 1, 1982-July 31, 1982
Related Subjects
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600* -- Coal
Lignite
& Peat-- Properties & Composition
AGING
AROMATICS
ASPHALTENES
ASPHALTS
BITUMENS
CHEMICAL BONDS
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL LIQUEFACTION
COAL LIQUIDS
DISTILLATES
FLUIDS
GAS CHROMATOGRAPHY
H-COAL PROCESS
HYDROGENATION
HYDROXY COMPOUNDS
INFRARED SPECTRA
LIQUEFACTION
LIQUIDS
MASS SPECTROSCOPY
NMR SPECTRA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PHENOLS
RESEARCH PROGRAMS
SEPARATION PROCESSES
SPECTRA
SPECTROSCOPY
SRC PROCESS
SRC-II PROCESS
TAR
THERMOCHEMICAL PROCESSES
VISCOSITY