METHOD FOR THE PYROLYTIC EXTRACTION OF HYDROCARBON FROM OIL SHALE
A method for the pyrolytic extraction of hydrocarbons such as shale oil from kerogen containing oil shale. Oil shale which has been ground into particulate form, is cascaded downwardly between a plurality of rotating trays (110) within a heated processing chamber (102). As the hydrocarbons are volatized within the chamber, the volatiles are collected and condensed within a condenser (124) or other suitable recovery apparatus (128).