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

Process for distilling solid carbonaceous material

Patent ·
OSTI ID:5362198
A process of destructive distillation of solid carbonaceous materials is described which consists in subjecting the material to the action of steam at a preheating temperature by percolating the steam through the material to cause a distillation. The residuum from the distillation is subjected to the action of superheated steam under pressures above atmospheric by percolating the steam therethrough at a destructive distillation temperature. Saturated steam is passed through the residuum of the second step, this steam being raised in temperature and then used in preheating.
Assignee:
TIC; EDB-78-035560
Patent Number(s):
US 1674420
OSTI ID:
5362198
Country of Publication:
United States
Language:
English