Process for improving the yield of shale oil

Mineral oils: processes and products – Products and compositions – Lubricating oils

Patent

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208 11LE, C10G 100

Patent

active

044192177

ABSTRACT:
Spent shale is treated with a mixture of methanol and water at moderate temperatures whereupon the treating mixture is removed and the treated spent shale is retorted. This results in 20% additional oil yield.

REFERENCES:
patent: 4046668 (1977-09-01), Farcasiu et al.
patent: 4238315 (1980-12-01), Patzer

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