Direct use of methane in coal liquefaction

Patent · Wed Dec 31 23:00:00 EST 1986

OSTI ID:866337

Sundaram, Muthu S ^[1]; Steinberg, Meyer ^[2]

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1. Shoreham, NY
2. Melville, NY

This invention relates to a process for converting solid carbonaceous material, such as coal, to liquid and gaseous hydrocarbons utilizing methane, generally at a residence time of about 20-120 minutes at a temperature of 250.degree.-750.degree. C., preferably 350.degree.-450.degree. C., pressurized up to 6000 psi, and preferably in the 1000-2500 psi range, preferably directly utilizing methane 50-100% by volume in a mix of methane and hydrogen. A hydrogen donor solvent or liquid vehicle such as tetralin, tetrahydroquinoline, piperidine, and pyrolidine may be used in a slurry mix where the solvent feed is 0-100% by weight of the coal or carbonaceous feed. Carbonaceous feed material can either be natural, such as coal, wood, oil shale, petroleum, tar sands, etc., or man-made residual oils, tars, and heavy hydrocarbon residues from other processing systems.

• Research Organization: ASSOC UNIVERSITIES INC
• DOE Contract Number: AC02-76CH00016
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4687570
• OSTI ID: 866337
• Country of Publication: United States
• Language: English

Related Subjects

-450
-750
/208/
0-100
1000-2500
20-120
250
350
50-100
6000
carbon residue
carbonaceous
carbonaceous feed
carbonaceous material
coal
coal liquefaction
converting
degree
direct
directly
donor
donor solvent
etc
feed
feed material
gaseous
gaseous hydrocarbon
gaseous hydrocarbons
heavy
heavy hydrocarbon
hydrocarbon
hydrocarbons
hydrocarbons utilizing
hydrogen
hydrogen donor
liquefaction
liquid
liquid vehicle
man-made
material
methane
minutes
mix
natural
oil
oil shale
oils
petroleum
piperidine
preferably
pressurized
process
processing
processing systems
psi
pyrolidine
range
relates
residence
residence time
residual
residual oil
residual oils
residues
sands
shale
slurry
slurry mix
solid
solid carbon
solid carbonaceous
solvent
systems
tar
tar sand
tar sands
tars
temperature
tetrahydroquinoline
tetralin
time
utilizing
vehicle
volume
weight
wood