Process for the gasification of sewage sludge

Details Process for the gasification of sewage sludge Process for the gasification of sewage sludge

C - Chemistry, Metallurgy

10

J

48/36

C10J 3/00 (2006.01) C02F 11/06 (2006.01) C02F 11/10 (2006.01) C10J 3/54 (2006.01) C21B 5/02 (2006.01) C21B 11/00 (2006.01) C21B 13/00 (2006.01)

Patent

CA 1275358

ABSTRACT A process for the gasification of sewage sludge or other carbon-containing waste materials in a gasifier is described. A solid fuel and oxygen-containing gas are also fed into said gasifier. The residues formed during gasification collect at the bottom of the gasifier in the form of molten slag. Gasification takes place in a fluidized bed formed above the slag bath and constituted by the dried sewage sludge or waste materials, the solid fuel, the oxygen-containing gas and the gasification gas. The gas produced in the gasifier can be used for power generation or as a reducing gas for iron ore. Sponge iron can simultaneously be melted in the gasifier and reduced to pig iron.

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