Coal liquefaction with preasphaltene recycle
Patent
·
OSTI ID:865971
- Allentown, PA
A coal liquefaction system is disclosed with a novel preasphaltene recycle from a supercritical extraction unit to the slurry mix tank wherein the recycle stream contains at least 90% preasphaltenes (benzene insoluble, pyridine soluble organics) with other residual materials such as unconverted coal and ash. This subject process results in the production of asphaltene materials which can be subjected to hydrotreating to acquire a substitute for No. 6 fuel oil. The preasphaltene-predominant recycle reduces the hydrogen consumption for a process where asphaltene material is being sought.
- Research Organization:
- INTERNATIONAL COAL REFINING CO
- DOE Contract Number:
- AC05-78OR03054
- Assignee:
- International Coal Refining Company (Allentown, PA)
- Patent Number(s):
- US 4609455
- OSTI ID:
- 865971
- Country of Publication:
- United States
- Language:
- English
Similar Records
Coal liquefaction with preasphaltene recycle
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·
Tue Sep 02 00:00:00 EDT 1986
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OSTI ID:5252909
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Related Subjects
/208/
90
acquire
ash
asphaltene
benzene
coal
coal liquefaction
consumption
contains
disclosed
extraction
fuel
fuel oil
hydrogen
hydrogen consumption
hydrotreating
insoluble
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material
materials
mix
novel
oil
organics
preasphaltene
preasphaltene recycle
preasphaltene-predominant
preasphaltenes
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pyridine
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reduces
residual
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slurry
slurry mix
soluble
soluble organic
soluble organics
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stream contains
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subjected
substitute
supercritical
supercritical extraction
tank
traction unit
unconverted
unconverted coal
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90
acquire
ash
asphaltene
benzene
coal
coal liquefaction
consumption
contains
disclosed
extraction
fuel
fuel oil
hydrogen
hydrogen consumption
hydrotreating
insoluble
liquefaction
material
materials
mix
novel
oil
organics
preasphaltene
preasphaltene recycle
preasphaltene-predominant
preasphaltenes
process
process results
production
pyridine
recycle
recycle stream
reduces
residual
results
slurry
slurry mix
soluble
soluble organic
soluble organics
sought
stream
stream contains
subject
subjected
substitute
supercritical
supercritical extraction
tank
traction unit
unconverted
unconverted coal
unit