Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Including contact with extraneous additive other than...
Patent
1986-01-31
1987-09-22
Pal, Asok
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Including contact with extraneous additive other than...
208429, 208432, 208433, 208435, C10G 100, C10G 104
Patent
active
046953736
ABSTRACT:
Hydrocarbon liquids are recovered from oil shale and other solids containing organic material by heating the solids to a temperature below about 900.degree. F., preferably between about 550.degree. F. and about 900.degree. F., in the absence of an added liquid organic solvent and then contacting the heated solids with a liquid organic solvent in such a manner that the solids and solvent do not form a slurry and under conditions such that hydrocarbons are extracted from the heated solids into the organic solvent. The extracted hydrocarbons are then recovered from the solvent by fractionation. Normally, the solids will be heated by contacting them with a hot, nonoxidizing gas, preferably an oxygen-free flue gas generated within the process.
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Defensive Publication No. 700,489, "Contacting Oil Shale or Shale Oil with a Solvent to Produce Material Suitable for Hydrofining," Long et al., published Apr. 15, 1969.
Finkle Yale S.
Pal Asok
Sandford Dean
Union Oil Company of California
Wirzbicki Gregory F.
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