Recovery of oil and gas from oil shale

Details Recovery of oil and gas from oil shale Recovery of oil and gas from oil shale

1978-06-26

1980-03-18

Levine, Herbert

Mineral oils: processes and products

Products and compositions

Lubricating oils

48197R, C10G 102

Patent

active

041938623

ABSTRACT:
A method of educting oil from fine, high carbon oil shales is disclosed. The method includes the steps of providing a burden of oil bearing shale having a high fixed carbon content and charging the shale in the traveling grate machine, preferably a circular traveling grate machine. The burden is moved in a horizontal plane into a retorting zone, where the shale is heated to an oil-educating temperature of at least 800 degrees F. Oil and a medium BTU gas is educted from the burden, and the burden is then moved to a gasifying zone, where steam and air are downdrafted through the burden to raise the temperature of the burden to a temperature in excess of 1800 degrees F. Such a temperature converts substantial amounts of residual carbon in the burden to carbonaceous gases, and promotes substantial agglomeration or clinkering of the spent shale to enable a separation recyling process. The spent shale is cooled and the spent agglomerated shale is discharged from the machine.

REFERENCES:
patent: 3325395 (1967-06-01), Ban
patent: 3560368 (1971-02-01), Rowland et al.
patent: 3703052 (1972-11-01), Linden

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