Process of recovering oil from oil-containing minerals

Details Process of recovering oil from oil-containing minerals Process of recovering oil from oil-containing minerals

C - Chemistry, Metallurgy

10

G

196/33

C10G 1/00 (2006.01) C10G 1/02 (2006.01)

Patent

CA 1171808

ABSTRACT OF THE DISCLOSURE: In a process of recovering oil from an oil- containing a mineral consisting essentially of charging the oil-containing mineral onto a traveling grate, passing a hot gas through the bed in a retorting zone to heat the bed to the retorting temperature, entraining the resulting vapors and gaseous retorting products by the retorting gases, separating oil from the retort gases in a separating stage, burning solid carbon in the resultant retorted bed in a succeeding combustion zone by means of an oxygen- containing gas passed therethrough, removing gases from oil in the separating zone and passing the gasses through the bed in a succeeding cooling zone, and recycling the result- ant heated gases to the retorting zone. The retort gases are passed directly to said separating stage, the solid carbon in a top layer of the bed is ignited by means of an ignition furnace at the beginning of the combustion zone, oxygen-containing gases are sucked through the bed there- after to cause the burning zone to move through the bed from top toward bottom, partial stream of the gas which is leaving the separating stage is heated by an indirect heat exchange with the exhaust gases from the combustion zone and is passed through the bed in the cooling zone, and are reheated therein and is then recycled to the retorting zone, and a partial stream of the gas that is leaving the separating stage is discharged.

403565

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