Shale retorting process and apparatus

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

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Details

201 28, 201 29, 201 32, 201 36, 201 40, 201 42, 201 43, 202 99, 202221, 202262, 414301, C10G 102, C10B 3102, C10B 4906, C10B 5306

Patent

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042435102

ABSTRACT:
Crushed oil shale is segregated into a major portion of relatively large particles and a minor portion of "fines," such as will pass through 1/8-inch screen openings. The large particles are subjected to retorting in an upflowing bed in countercurrent contact with a downflowing hot eduction gas, while the fines are fed onto and controllably transported across the hot planar surface of a free-standing truncated cone of spent shale at the top of the retort.

REFERENCES:
patent: 2640014 (1953-05-01), Berg
patent: 2640019 (1953-05-01), Berg
patent: 2954329 (1960-09-01), Dhondt et al.
patent: 2980592 (1961-04-01), Deering et al.
patent: 3004898 (1961-10-01), Deering
patent: 4162960 (1979-07-01), Dhondt

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