Actions for Hydrogen bonding in asphaltenes and coal. Final report

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Hydrogen bonding in asphaltenes and coal. Final report

Author
Li, N. C.
Published
United States : [publisher not identified], 1984
Springfield, Va.: National Technical Information Service, [approximately 1984]
Physical Description
microfiche : negative ; 11 x 15 cm

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Summary
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.
Report Numbers
DE84011624; DOE/PC/30252-T12
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: AC22-80PC30252
OSTI Identifier 6958204
Research organization: Duquesne Univ., Pittsburgh, PA (USA). Dept. of Chemistry.
View MARC record | catkey: 47340818