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

Gasification process and apparatus

Patent ·
OSTI ID:7010506
This patent describes an apparatus for the gasification of coal by reaction at elevated temperatures with oxygen and steam. The apparatus consists of a vertical conical gasification kiln widening in an upward direction positioned within a gasification vessel adapted to withstand elevated internal pressures; a baffle separating the annular space between the gasification vessel and the gasification kiln into an upper portion comprising an ash bin and a lower portion comprising a feed bin; and pressure lock means for introducing said coal into said feed bin for subsequent introduction into said gasification kiln to be gasified. The pressure lock has means for removing ashes from said ash bin and means for introducing reactant gases into the upper part of said kiln. The apparatus also has a means for removing product gases and liquids from the lower part of said kiln and positive solids feeder means. This is for passing said coal upwardly so as to maintain a bed of said coal at elevated temperatures in an oxidation zone in the upper portion of said gasification vessel where said coal is subjected to a small fraction of the weight of coal present within said kiln.
Assignee:
Union Oil Co. of California, Los Angeles
Patent Number(s):
US 2627455
OSTI ID:
7010506
Country of Publication:
United States
Language:
English