Production of carbon artifact precursors
Patent
·
OSTI ID:6400557
A low coking pitch suitable for carbon artifact manufacture, especially carbon fiber manufacture, is obtained by heat soaking and vacuum stripping the distillate recovered from cat cracker bottoms. Preferably a cat cracker bottom distillate boiling in the range of about 450 to 510/sup 0/C. At 760 mm hg is heat soaked at about 350 to about 500/sup 0/C for up to about 20 hours and then vacuum stripped at below 400/sup 0/C.
- Assignee:
- Exxon Research and Engineering Co
- Patent Number(s):
- US 4363715
- OSTI ID:
- 6400557
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
CARBON FIBERS
CARBONIZATION
CATALYTIC CRACKING
CHEMICAL REACTIONS
COKING
CRACKING
DECOMPOSITION
DISTILLATES
ELEMENTS
FIBERS
HEAT TREATMENTS
HYDROGEN
INERT ATMOSPHERE
NONMETALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PITCHES
PRECURSOR
PRODUCTION
PYROLYSIS
RESIDUES
SOLVENTS
THERMOCHEMICAL PROCESSES
VACUUM SYSTEMS
020400* -- Petroleum-- Processing
CARBON FIBERS
CARBONIZATION
CATALYTIC CRACKING
CHEMICAL REACTIONS
COKING
CRACKING
DECOMPOSITION
DISTILLATES
ELEMENTS
FIBERS
HEAT TREATMENTS
HYDROGEN
INERT ATMOSPHERE
NONMETALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PITCHES
PRECURSOR
PRODUCTION
PYROLYSIS
RESIDUES
SOLVENTS
THERMOCHEMICAL PROCESSES
VACUUM SYSTEMS