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

Process and apparatus for the treatment of coal, shale, or the like in vertical retorts

Patent ·
OSTI ID:7204688
An improvement in the art of retorting coal, shale, and the like, is described consisting in enveloping and supporting a section of the central portion of the materials being retorted and simultaneously withdrawing a portion of the material below the supported section, so as to cause the material above the enveloped section to fall and fill up the space surrounding the enveloped section and to cause the section of the central portion above the enveloped section to approach nearer to the walls of the retort and mix with the exterior portion, without substantial displacement of the enveloped section.
Assignee:
TIC; EDB-78-025011
Patent Number(s):
US 1103112
OSTI ID:
7204688
Country of Publication:
United States
Language:
English