Method of using a methane-containing gas for reducing iron ore

Details Method of using a methane-containing gas for reducing iron ore Method of using a methane-containing gas for reducing iron ore

C - Chemistry, Metallurgy

21

B

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C21B 13/00 (2006.01) B22F 9/22 (2006.01) C21B 13/02 (2006.01) C21B 13/04 (2006.01)

Patent

CA 1153558

124343 ABSTRACT OF THE DISCLOSURE A method of using coke oven gas, and more generally gaseous mixtures containing up to about 30% by volume of methane, for the direct gaseous reduction of iron ore in a vertical shaft, moving bed reactor. In addition to the usual reduction zone and cooling zone, the re- actor is provided with an intermediate reform- ing zone. A hot mixture of coke oven gas and steam is fed to the intermediate zone and re- duced ore therein catalyzes the conversion of the methane of the coke oven gas to carbon monoxide and hydrogen. The reformed gas flows upwardly into the reduction zone of the reactor.

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