Method for the direct reduction of iron using gas from coal

Details Method for the direct reduction of iron using gas from coal Method for the direct reduction of iron using gas from coal

C - Chemistry, Metallurgy

21

B

53/24

C21B 11/00 (2006.01) C21B 13/00 (2006.01)

Patent

CA 1118211

SPECIFICATION DAVID C. MEISSNER CHARLES W. SANZENBACHER METHOD FOR THE DIRECT REDUCTION OF IRON USING GAS FROM COAL ABSTRACT A method for direct reduction of iron in a shaft reduction furnace. Spent gas from the furnace is upgraded in reductant by removal of CO2 and water to form an upgraded gas. A fossil fuel is gasified to produce a hot gas which is tempered with a first stream of upgraded gas. The mixture is desulfurized by reaction with lime to produce hot desulfurized gas. A second stream of upgraded gas is heated and m;xed with the hot desulfurized gas to produce hot reducing gas,

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