Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Apparatus for distilling shale and other bituminous substances

Patent ·
OSTI ID:7204687
An apparatus for distilling shale and other bituminous substances is described in which a furnace incorporates a retort having sides of a stepped cylindrical formation and arranged in the combustion chamber or flue of the furnace with its widest diameter uppermost and its smallest diameter lowermost so that the inside presents a series of horizontal or approximately horizontal concentric ledges of lessening diameter. A means is provided for feeding the material onto the highermost ledge, along with a means for working the material around the ledges and down from ledge to ledge to a discharge outlet.
Assignee:
TIC; EDB-78-025305
Patent Number(s):
US 985053
OSTI ID:
7204687
Country of Publication:
United States
Language:
English