Apparatus for producing direct reduced iron utilizing a reducing

Details Apparatus for producing direct reduced iron utilizing a reducing Apparatus for producing direct reduced iron utilizing a reducing

1997-07-17

1999-03-16

Andrews, Melvyn

Metallurgical apparatus

With means treating or handling gases exhausted by treating...

266160, 266172, C21B 1100

Patent

active

058825797

ABSTRACT:
A method and apparatus for producing direct reduced iron using a melter-gasifier and two reduction reactors. In the first reduction reactor, iron ore is prereduced using a reducing gas from a melter-gasifier. This prereduced iron ore is fed into the melter-gasifier to produce pig iron. A secondary reducing gas comprising hydrogen and carbon monoxide is withdrawn from the first reduction reactor and is reacted with water to produce carbon dioxide which is subsequently removed to produce a tertiary reducing gas that is used in the second reduction reactor to produce direct reduced iron from iron ore.

REFERENCES:
patent: 5238487 (1993-08-01), Hauk et al.

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