Re-refining lubricating oil in a bed of oil shale

Details Re-refining lubricating oil in a bed of oil shale Re-refining lubricating oil in a bed of oil shale

1983-07-20

1984-03-06

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

208179, 208182, C10B 5306

Patent

active

044352700

ABSTRACT:
A method of reclaiming usable stock from used lubricating oil includes passing the used oil through a bed of oil shale containing kerogen. The shale removes impurities from the oil. The shale is then heated to convert the kerogens to shale oil in the presence of hydrogen donor compounds contained in the lubricating oil remaining in the shale. These enhance hydrogen transfer during shale oil production.

REFERENCES:
patent: 4090953 (1978-05-01), Bridger et al.
patent: 4238315 (1980-12-01), Patzer

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