Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1981-01-08
1982-07-27
Tufariello, T. M.
Mineral oils: processes and products
Products and compositions
Lubricating oils
202117, 202137, C10G 102, C10B 106
Patent
active
043416209
ABSTRACT:
Hydrocarbon containing oil shale is processed on the surface of a rabbled rotary hearth by mixing it with a heat exchange medium consisting of heated spent oil shale. Mixing is obtained by feeding the raw shale and the heated spent shale separately, but in proximity to one another, onto the surface of a hearth, and then subjecting both materials to rabbling action. This mixing causes heat from the heated spent shale heat exchange medium to be transferred to the fresh raw shale, which results in the removal of hydrocarbons from the raw shale. In one preferred embodiment, heated spent shale is obtained by removing spent shale from the hearth after processing, mixing it, preferably while it is still hot, with compatible combustible solids, and then introducing oxidizing gases into the mixture. This results in the burning of the combustible solids and any combustible materials remaining in the shale and the heating of the spent shale.
REFERENCES:
patent: 2723226 (1955-11-01), Tesher
patent: 3470068 (1969-09-01), Kemmerer et al.
patent: 3496094 (1970-02-01), Smith
patent: 3594286 (1971-07-01), Kemmerer
patent: 3998703 (1976-12-01), Harrell
Hummel Jack L.
Marathon Oil Company
Tufariello T. M.
LandOfFree
Method and apparatus for processing oil shale in a rotary hearth does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for processing oil shale in a rotary hearth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for processing oil shale in a rotary hearth will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2023992