Process for hydrocracking carbonaceous material in liquid carrie

Details Process for hydrocracking carbonaceous material in liquid carrie Process for hydrocracking carbonaceous material in liquid carrie

1979-04-13

1980-11-18

Shaver, Paul F.

Mineral oils: processes and products

Phenolic or toxic oils

208 8LE, A45C 1102, B65D 8518

Patent

active

042344085

ABSTRACT:
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.

REFERENCES:
patent: 3817723 (1974-06-01), Donath
Duncan et al., "R & D of Rapid Hydrogenation for Coal Conversion to Synthetic Motor Fuels," Task 1, USDOE-IGT, 1976.
ERDA-76-86, "Coal Conversion and Utilization, Solvent-Refined Coal (SRC) Process," pp. 2.7-2.13, USERDA, 1976.
"Hydrocarbon Processing," Olefins Production by Gas Oil Cracking, pp. 161-166.

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