Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1977-06-13
1978-06-13
Levine, Herbert
Mineral oils: processes and products
Products and compositions
Lubricating oils
201 7, 201 33, 202118, 202128, C10G 102
Patent
active
040947696
ABSTRACT:
In a method and apparatus for recovering oil products from oil shale and like materials, controlled amounts of raw oil shale are delivered into an upper inlet of a downwardly sloping retort chamber that is constructed as readily portable. The raw oil shale is first moved in a direction countercurrent to gravity flow and crushed in the retort chamber by means of a rotating member that also serves to retain the oil shale in the retort chamber until a satisfactory recovery is completed. The crushed oil shale is confined to a relatively thin, downwardly moving layer in contact with a heated, inner, annular wall surface and moves by gravity flow between the inlet and a lower outlet to produce oil product vapors that rise to an upper portion of the retort chamber. The moving layer of the oil shale becomes spent as it passes through the retort chamber and finally is selectively discharged through the lower outlet. The oil product vapors are removed from the retort chamber into a condensing tube in which the vapors are condensed to a liquid form. The oil products are removed from the condenser by weight or are further refined in an adjacent refinery.
REFERENCES:
patent: 1196470 (1916-08-01), Aldama
patent: 1272377 (1918-07-01), Catlin
patent: 1297022 (1919-03-01), Shreves
patent: 1468379 (1923-09-01), Easton
patent: 1490213 (1924-04-01), Jenson
patent: 1810828 (1931-06-01), Hayes
patent: 2983653 (1961-05-01), Danulat et al.
patent: 3350280 (1967-10-01), West
Levine Herbert
Lewis, Jr. Ancel W.
Mineral Concentrates & Chemical Company, Inc.
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