Superatmospheric pressure shale retorting process

Details Superatmospheric pressure shale retorting process Superatmospheric pressure shale retorting process

1976-05-05

1977-01-18

Richman, Barry S.

Distillation: processes, thermolytic

Sequentially removing, treating and recycling a product

201 23, 201 27, 201 29, 201 30, 201 32, 201 34, 208 11R, C10B 5306

Patent

active

040037975

ABSTRACT:
In a continuous, solids upflow, gas downflow shale retorting process carried out at superatmospheric pressures, hydrostatic sealing means are provided at the shale inlet and retorted shale outlet ends of the retort, thereby avoiding the need for mechanical sealing means, lock vessels, etc. The raw shale is fed into the retort through a standing reservoir of product oil, or preferably a light fraction thereof, and the retorted shale is discharged from the retort through a water quenching zone and seal, in the lower portion of which is maintained a sufficient hydrostatic head of water to prevent the discharge therethrough of retort gases. Steam generated in the quench zone, containing some entrained hydrocarbonaceous matter, is treated in a multistage cooling and condensing manner for gas cleanup and for recovery of heat and an oil-free water condensate for recycle to the water sealing and quench zones.

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patent: 2550432 (1951-03-01), Thompson
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patent: 3361644 (1968-01-01), Deering
patent: 3483115 (1969-12-01), Haddad et al.
patent: 3634225 (1972-01-01), Garbett
patent: 3841992 (1974-10-01), Jones et al.

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