Chemistry and structure of coal-derived asphaltenes. Final report

Technical Report · Thu Jan 01 04:00:00 EST 1981

OSTI ID:6231998

Retcofsky, H L; Yen, T F

The objective of this project is two fold: (1) interconversion of the coal liquid products was studied and kinetics data obtained to help in understanding the mechanism of the coal liquefaction process; and (2) carbon formation and carbonaceous mesophase formation in particular were studied to learn how to eliminate carbon build up during liquefaction. In the initial phase of this work the chemistry and structure of the asphaltene and preasphaltene fractions from a number of coal liquefaction processes were determined. A summary of the results can be found in the interim report. The final phase of the work was devoted to understanding the mechanisms of the liquefaction process and carbon formation during liquefaction.

• Research Organization: University of Southern California, Los Angeles (USA)
• DOE Contract Number: AC22-75ET10626
• OSTI ID: 6231998
• Report Number(s): DOE/ET/10626-T6; ON: DE83006945
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600 -- Coal
Lignite
& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ASPHALTENES
ASPHALTS
BITUMENS
CARBON
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL LIQUEFACTION
COAL LIQUIDS
COHERENT SCATTERING
DATA
DECOMPOSITION
DIFFRACTION
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
FLUIDS
FOURIER TRANSFORMATION
FRACTIONATION
INFORMATION
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
KINETICS
LIQUEFACTION
LIQUID COLUMN CHROMATOGRAPHY
LIQUIDS
NMR SPECTRA
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
PYROLYSIS
REACTION KINETICS
RESEARCH PROGRAMS
RESINS
SCATTERING
SEPARATION PROCESSES
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
TAR
THERMOCHEMICAL PROCESSES
TRANSFORMATIONS
X-RAY DIFFRACTION
YIELDS