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Process for refining coal-based heavy oils

Patent ·
OSTI ID:5515696
; ;
A coal-based heavy oil is refined so as to remove quinoline insolubles and provide a hydrocarbon product suitable for making carbon stocks by heating to remove the volatile components which have boiling points ranging from the initial boiling point of the heavy oil to up to at least 200/sup 0/C and at most 270/sup 0/C, thereby leaving a residual coal-based heavy oil. The residual coal-based heavy oil is mixed with a ketone-type solvent having a boiling point less than 200/sup 0/C to form an insoluble precipitate (including quinoline insolubles) and a supernatent. The supernatent is treated to recover the ketone-type solvent, and the remaining hydrocarbon mixture is easily processed by vacuum distillation to produce a hydrocarbon product suitable for making carbon stocks.
Assignee:
Sumitomo Metal Industries, Ltd.
Patent Number(s):
US 4402824
OSTI ID:
5515696
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
AROMATICS
AZAARENES
AZINES
DISTILLATION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
KETONES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
PRECIPITATION
PROCESSING
PYRIDINES
QUINOLINES
REFINING
REMOVAL
SEPARATION PROCESSES
SOLVENTS
VACUUM SYSTEMS
VISCOSITY