Process and apparatus for coal hydrogenation

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:867811

Ruether, John A ^[1]; Simpson, Theodore B ^[2]

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1. McMurray, PA
2. McLean, VA

In a coal liquefaction process an aqueous slurry of coal is prepared containing a dissolved liquefaction catalyst. A small quantity of oil is added to the slurry and then coal-oil agglomerates are prepared by agitation of the slurry at atmospheric pressure. The resulting mixture is drained of excess water and dried at atmospheric pressure leaving catalyst deposited on the agglomerates. The agglomerates then are fed to an extrusion device where they are formed into a continuous ribbon of extrudate and fed into a hydrogenation reactor at elevated pressure and temperature. The catalytic hydrogenation converts the extrudate primarily to liquid hydrocarbons in the reactor. The liquid drained in recovering the agglomerates is recycled.

• Research Organization: USDOE Pittsburgh Energy Technology Center (PETC), PA (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5015366
• OSTI ID: 867811
• Country of Publication: United States
• Language: English

Related Subjects

process
apparatus
coal
hydrogenation
liquefaction
aqueous
slurry
prepared
containing
dissolved
catalyst
quantity
oil
added
coal-oil
agglomerates
agitation
atmospheric
pressure
resulting
mixture
drained
excess
water
dried
leaving
deposited
fed
extrusion
device
formed
continuous
ribbon
extrudate
reactor
elevated
temperature
catalytic
converts
primarily
liquid
hydrocarbons
recovering
recycled
excess water
liquid hydrocarbon
resulting mixture
catalytic hydrogenation
liquid hydrocarbons
liquefaction process
coal liquefaction
atmospheric pressure
aqueous slurry
elevated pressure
coal hydrogenation
liquefaction catalyst
coal-oil agglomerates
hydrogenation reactor
coal hydrogen
prepared containing
dissolved liquefaction
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