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Aromatic pitch from asphaltene-free steam cracker tar fractions

Patent ·
OSTI ID:7081844
A process and a product of the process for preparing a pitch suitable for carbon artifact manufacture features a pitch having a weight content of between 80 and 100 percent toluene insolubles. The pitch is derived from a deasphaltenated middle fraction of a steam cracker tar feedstock. The middle fraction is rich in 2, 3, 4, and 5 polycondensed aromatic rings. The pitch is characterized as being relatively free of impurities and ash.
Assignee:
Exxon Research and Engineering Co.
Patent Number(s):
US 4431512
OSTI ID:
7081844
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKYLATED AROMATICS
AROMATICS
ASPHALTENES
ASPHALTS
BITUMENS
BOILING POINTS
CARBON FIBERS
CHEMICAL COMPOSITION
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
CRACKING
DEASPHALTING
DECOMPOSITION
DISTILLATION
ENERGY SOURCES
EXTRACTION
FIBERS
FOSSIL FUELS
FUELS
GAS OILS
HEATING
HYDROCARBONS
IMPURITIES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PITCHES
PYROLYSIS
QUANTITY RATIO
SEPARATION PROCESSES
SOLUBILITY
TAR
THERMAL CRACKING
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TOLUENE
TRANSITION TEMPERATURE