Direct coal liquefaction process
- Grand Forks, ND
An improved multistep liquefaction process for organic carbonaceous mater which produces a virtually completely solvent-soluble carbonaceous liquid product. The solubilized product may be more amenable to further processing than liquid products produced by current methods. In the initial processing step, the finely divided organic carbonaceous material is treated with a hydrocarbonaceous pasting solvent containing from 10% and 100% by weight process-derived phenolic species at a temperature within the range of 300.degree. C. to 400.degree. C. for typically from 2 minutes to 120 minutes in the presence of a carbon monoxide reductant and an optional hydrogen sulfide reaction promoter in an amount ranging from 0 to 10% by weight of the moisture- and ash-free organic carbonaceous material fed to the system. As a result, hydrogen is generated via the water/gas shift reaction at a rate necessary to prevent condensation reactions. In a second step, the reaction product of the first step is hydrogenated.
- Research Organization:
- Univ. of North Dakota, Grand Forks, ND (United States)
- DOE Contract Number:
- FC21-86MC10637
- Assignee:
- Energy and Environmental Research Center Foundation (EERC Foundation) (Grand Forks, ND)
- Patent Number(s):
- US 5256278
- OSTI ID:
- 868979
- Country of Publication:
- United States
- Language:
- English
Similar Records
Direct liquefaction of low-rank coals
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Related Subjects
coal
liquefaction
process
improved
multistep
organic
carbonaceous
mater
produces
virtually
completely
solvent-soluble
liquid
product
solubilized
amenable
processing
products
produced
current
methods
initial
step
finely
divided
material
treated
hydrocarbonaceous
pasting
solvent
containing
10
100
weight
process-derived
phenolic
species
temperature
range
300
degree
400
typically
minutes
120
presence
carbon
monoxide
reductant
optional
hydrogen
sulfide
reaction
promoter
amount
ranging
moisture-
ash-free
fed
result
generated
via
water
gas
shift
rate
prevent
condensation
reactions
hydrogenated
organic carbon
organic carbonaceous
solvent containing
liquefaction process
carbon monoxide
coal liquefaction
carbonaceous material
hydrogen sulfide
reaction product
finely divided
liquid products
liquid product
carbonaceous liquid
products produced
shift reaction
processing step
gas shift
virtually complete
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