Apparatus and method for producing gas

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

C - Chemistry, Metallurgy

10

J

48/35, 48/6

C10J 3/00 (2006.01) C10B 49/04 (2006.01) C10J 3/20 (2006.01) F23G 5/027 (2006.01) F23G 5/24 (2006.01) F23H 7/08 (2006.01)

Patent

CA 1081954

ABSTRACT Continuously flowing solid material, such as municipal waste, is pretreated in an air-starved hot moving grate carbonizer furnace to drive of low temperature vola- tiles, 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 forma- tion of hot spots, i.e., localized regions of intense re- action, such 25 would cause clinkers to be formed. Low Btu gas is exhausted from the pretreatment carbonizer and shaft furnace and sterile ash residue is dischared from the bottom of the shaft furnace.

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