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U.S. Department of Energy
Office of Scientific and Technical Information

Oil-shale retort

Patent ·
OSTI ID:5316266
A continuous retort is described for the destructive distillation of oil-sands and oil-shale, comprising a series of superposed intercommunicating annular hearths and a heating chamber interposed between the hearths. The floors of the hearths constitute the roofs of the heating chamber. Means are provided for advancing the material from one hearth to another, the means including a hollow central shaft having hollow arms radiating therefrom with rabbles. Means are also provided for supplying steam to the shaft and arms, the arms being perforated to allow steam to be directed onto the material being treated.
Assignee:
TIC; EDB-78-020128
Patent Number(s):
US 1373890
OSTI ID:
5316266
Country of Publication:
United States
Language:
English