Process for hydrocracking carbonaceous material in liquid carrier

Patent · Mon Dec 31 23:00:00 EST 1979

OSTI ID:863721

Duncan, Dennis A ^[1]

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1. Downers Grove, IL

Solid carbonaceous material is hydrocracked to provide aliphatic and aromatic hydrocarbons for use as gaseous and liquid fuels or chemical feed stock. Particulate carbonaceous material such as coal in slurry with recycled product oil is preheated in liquid state to a temperature of 600.degree.-1200.degree. F. in the presence of hydrogen gas. The product oil acts as a sorbing agent for the agglomerating bitumins to minimize caking within the process. In the hydrocracking reactor, the slurry of oil and carbonaceous particles is heated within a tubular passageway to vaporize the oil and form a gas-solid mixture which is further heated to a hydropyrolysis temperature in excess of 1200.degree. F. The gas-solid mixture is quenched by contact with additional oil to condense normally liquid hydrocarbons for separation from the gases. A fraction of the hydrocarbon liquid product is recycled for quenching and slurrying with the carbonaceous feed. Hydrogen is recovered from the gas for recycle and additional hydrogen is produced by gasification of residual char.

• Research Organization: Institute of Gas Technology
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4234408
• OSTI ID: 863721
• Country of Publication: United States
• Language: English

Related Subjects

-1200
/585/208/
1200
600
additional
additional hydrogen
agent
agglomerating
aliphatic
aromatic
aromatic hydrocarbon
aromatic hydrocarbons
bitumins
caking
carbonaceous
carbonaceous feed
carbonaceous material
carbonaceous particles
carrier
char
chemical
chemical feed
coal
condense
contact
cracking reactor
degree
excess
feed
feed stock
form
fraction
fuels
gas
gas-solid
gas-solid mixture
gaseous
gases
gasification
heated
hydrocarbon
hydrocarbon liquid
hydrocarbons
hydrocracked
hydrocracking
hydrocracking carbonaceous
hydrogen
hydrogen gas
hydropyrolysis
liquid
liquid carrier
liquid fuel
liquid fuels
liquid hydrocarbon
liquid hydrocarbons
liquid product
material
minimize
mixture
normally
normally liquid
oil
particles
particulate
particulate carbon
particulate carbonaceous
passageway
preheated
presence
process
produced
product
provide
provide aliphatic
pyrolysis temperature
quenched
quenching
reactor
recovered
recycle
recycled
residual
residual char
separation
slurry
slurrying
solid
solid carbon
solid carbonaceous
solid mixture
sorbing
stock
temperature
tubular
vaporize