Preheating oil shale prior to pyrolysis thereof

Details Preheating oil shale prior to pyrolysis thereof Preheating oil shale prior to pyrolysis thereof

C - Chemistry, Metallurgy

10

G

196/34

C10G 1/00 (2006.01) C10B 53/06 (2006.01) C10G 1/02 (2006.01)

Patent

CA 1046442

PREHEATING OIL SHALE PRIOR TO PYROLYSIS THEREOF of which the following is a SPECIFICATION ABSTRACT OF THE DISCLOSURE Oil shale is preheated to temperatures in the order of 400°F to 650°F prior to the pyrolysis thereof in a retort to produce vaporous hydrocarbonaceous products therefrom by entraining the oil shale with hot flue gases in a series of at least two dilute phase fluidized beds having an incineration zone interposed upstream of the final fluldized bed for reheating flue gases threfrom, and for combusting oil shale fines and hydrocarbon vapors evolved during the preheating operation and entrained in the flue gases prior to discharge to the atmosphere .

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