Catalyst for coal liquefaction process
- Pennington, NJ
- Princeton, NJ
An improved catalyst for a coal liquefaction process; e.g., the H-Coal Process, for converting coal into liquid fuels, and where the conversion is carried out in an ebullated-catalyst-bed reactor wherein the coal contacts catalyst particles and is converted, in addition to liquid fuels, to gas and residual oil which includes preasphaltenes and asphaltenes. The improvement comprises a catalyst selected from the group consisting of the oxides of nickel molybdenum, cobalt molybdenum, cobalt tungsten, and nickel tungsten on a carrier of alumina, silica, or a combination of alumina and silica. The catalyst has a total pore volume of about 0.500 to about 0.900 cc/g and the pore volume comprises micropores, intermediate pores and macropores, the surface of the intermediate pores being sufficiently large to convert the preasphaltenes to asphaltenes and lighter molecules. The conversion of the asphaltenes takes place on the surface of micropores. The macropores are for metal deposition and to prevent catalyst agglomeration. The micropores have diameters between about 50 and about 200 angstroms (.ANG.) and comprise from about 50 to about 80% of the pore volume, whereas the intermediate pores have diameters between about 200 and 2000 angstroms (.ANG.) and comprise from about 10 to about 25% of the pore volume, and the macropores have diameters between about 2000 and about 10,000 angstroms (.ANG.) and comprise from about 10 to about 25% of the pore volume. The catalysts are further improved where they contain promoters. Such promoters include the oxides of vanadium, tungsten, copper, iron and barium, tin chloride, tin fluoride and rare earth metals.
- Research Organization:
- HYDROCARBON RESEARCH INC
- DOE Contract Number:
- AC22-78ET10742
- Assignee:
- Hydrocarbon Research, Inc. (Lawrenceville, NJ)
- Patent Number(s):
- US 4424109
- OSTI ID:
- 864825
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
coal
liquefaction
process
improved
h-coal
converting
liquid
fuels
conversion
carried
ebullated-catalyst-bed
reactor
contacts
particles
converted
addition
gas
residual
oil
preasphaltenes
asphaltenes
improvement
comprises
selected
consisting
oxides
nickel
molybdenum
cobalt
tungsten
carrier
alumina
silica
combination
total
pore
volume
500
900
cc
micropores
intermediate
pores
macropores
surface
sufficiently
convert
lighter
molecules
takes
metal
deposition
prevent
agglomeration
diameters
50
200
angstroms
ang
comprise
80
2000
10
25
000
catalysts
contain
promoters
vanadium
copper
iron
barium
chloride
fluoride
rare
earth
metals
catalyst selected
catalyst particles
bed reactor
liquefaction process
coal liquefaction
rare earth
earth metal
improvement comprises
liquid fuel
earth metals
liquid fuels
converting coal
pore volume
metal deposition
prevent catalyst
residual oil
improved catalyst
metal deposit
volume comprises
h-coal process
coal process
catalyst particle
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