Distillation: apparatus – Apparatus – Systems
Patent
1981-02-03
1982-07-20
Garris, Bradley
Distillation: apparatus
Apparatus
Systems
201 27, 201 32, 201 37, 201 43, 202108, 202117, 202215, C10B 706, C10B 5306, C10G 102
Patent
active
043404448
ABSTRACT:
A plant for continuously retorting oil products contained in shales and sands comprising a substantially horizontal retort furnace into which said shales and sands are introduced by means of hoppers and metering devices and placed on metal conveyors moving in counter-current to gases, means being provided for placing said shales and sands onto said conveyors with a suitable thickness and for stirring the shales and sands. One or more combustion chambers are arranged outside said retort furnace for producing hot gases, and one or more input zones are located along the retort furnace for admitting hot gases into the retort furnace, causing the hot gases to mix with circulating gases which have been preheated by removing sensible heat from the exhausted shale and sand material. A direct contact condenser at the furnace head utilizes cold fluid to condense distilled oil products, and a decantation tank is arranged beneath said condenser for freeing the process gases from the dust. Uncondensed gases containing carbon dioxide, hydrogen, high hydrocarbon fractions, nitrogen and steam are recycled into the retort. Condensed oils from said distillation step, as well as oil drawn from the tunnel retort in liquid phase, are decanted and submitted to successive treatments.
REFERENCES:
patent: 3560369 (1971-02-01), Rowland et al.
patent: 3644193 (1972-02-01), Weggel et al.
patent: 3891403 (1975-06-01), Weil et al.
patent: 3929615 (1975-12-01), Linden et al.
patent: 4003821 (1977-01-01), Weil et al.
patent: 4052265 (1977-10-01), Kemp
patent: 4276120 (1981-06-01), Lutz
Garris Bradley
Square S.A.
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