Chemistry and structure of coal derived asphaltenes and preasphaltenes. Quarterly progress report, April-June 1981
Technical Report
·
OSTI ID:5838984
The purpose was to increase the pyrolysis yield by oxidation of a good precursor such as Catalytic Incorporated asphaltene without sacrificing mesophase growth as determined by the microstructure. Asphaltene was oxidized to two higher levels of oxygen content by: (1) heating in air at 100/sup 0/C for two days which increased the oxygen content from 4.5% to 5.83% by weight; (2) oxidizing over chromyl chloride to replace aromatic methyl groups by aldehyde groups which increased the oxygen content to 9.62% by weight. Increasing the oxygen content to 5.83% increased the pyrolysis yield and also did not affect the microstructure but an increase to 9.62% which gave higher yields, completely destroyed the graphitizability of the precursor. (ATT)
- Research Organization:
- University of Southern California, Los Angeles (USA)
- DOE Contract Number:
- AC22-75ET10626
- OSTI ID:
- 5838984
- Report Number(s):
- DOE/ET/10626-T4; FE-2031-21; ON: DE82002342
- Country of Publication:
- United States
- Language:
- English
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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)
ABSORPTION SPECTROSCOPY
ASPHALTENES
ASPHALTS
BITUMENS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM CHLORIDES
CHROMIUM COMPOUNDS
COAL LIQUEFACTION
COAL LIQUIDS
CRYSTAL STRUCTURE
DATA
DECOMPOSITION
EXPERIMENTAL DATA
FLUIDS
FOURIER TRANSFORMATION
HALIDES
HALOGEN COMPOUNDS
HIGH TEMPERATURE
INFORMATION
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
LIQUEFACTION
LIQUIDS
MICROSTRUCTURE
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PYROLYSIS
RESEARCH PROGRAMS
RESIDUES
SPECTRA
SPECTROSCOPY
TAR
THERMOCHEMICAL PROCESSES
TRANSFORMATIONS
TRANSITION ELEMENT COMPOUNDS
YIELDS
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)
ABSORPTION SPECTROSCOPY
ASPHALTENES
ASPHALTS
BITUMENS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM CHLORIDES
CHROMIUM COMPOUNDS
COAL LIQUEFACTION
COAL LIQUIDS
CRYSTAL STRUCTURE
DATA
DECOMPOSITION
EXPERIMENTAL DATA
FLUIDS
FOURIER TRANSFORMATION
HALIDES
HALOGEN COMPOUNDS
HIGH TEMPERATURE
INFORMATION
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
LIQUEFACTION
LIQUIDS
MICROSTRUCTURE
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PYROLYSIS
RESEARCH PROGRAMS
RESIDUES
SPECTRA
SPECTROSCOPY
TAR
THERMOCHEMICAL PROCESSES
TRANSFORMATIONS
TRANSITION ELEMENT COMPOUNDS
YIELDS