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

1979-10-15

1981-03-03

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

C21B 1302

Patent

active

042538670

ABSTRACT:
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 reactor is provided with an intermediate reforming zone. A hot mixture of coke oven gas and steam is fed to the intermediate zone and reduced 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.

REFERENCES:
patent: 2367262 (1945-01-01), Brassert
patent: 3909446 (1975-09-01), Miyashita et al.
patent: 4054444 (1977-10-01), Clark et al.
patent: 4150972 (1979-04-01), Price-Falcon et al.

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