Apparatus and method for producing gas

Details Apparatus and method for producing gas Apparatus and method for producing gas

1976-12-03

1978-08-29

Sprague, Kenneth W.

Furnaces

Refuse incinerator

110244, 110254, 110270, 110165R, F23G 500, F23L 900, F23J 102

Patent

active

041095901

ABSTRACT:
Continuously flowing solid material, such as municipal waste, is pretreated in an air-starved hot moving grate carbonizer furnace to drive off low temperature volatiles, and then further devolatized in a shaft furnace wherein limited amounts of air are let into a downwardly moving stack of the precarbonized material at a plurality of locations spaced sufficiently apart as to preclude formation of hot spots, i.e., localized regions of intense reaction, such as would cause clinkers to be formed. Low Btu gas is exhausted from the pretreatment carbonizer and shaft furnace and sterile ash residue is discharged from the bottom of the shaft furnace.

REFERENCES:
patent: 1598390 (1926-08-01), Piernay
patent: 2005812 (1935-06-01), Thomas

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