Patent ID: 9638468
Date: 2017-05-02
CPC Classifications: B01D,C21B,F27D,Y02P

Claim:
1. A direct reduced iron manufacturing system comprising: a gas reformer for reforming natural gas; a heating unit for heating a reformed gas reformed by the gas reformer to a predetermined temperature at which the reformed gas is supplied to a reduction furnace to form a reducing gas; a direct reduction furnace for reducing iron ore directly into reduced iron using a high-temperature reducing gas comprising hydrogen and carbon monoxide; an acid gas removal unit including a recovery gas introduction line for supplying the recovery gas released from the regenerator, the recovery gas comprising carbon dioxide and hydrogen sulfide, to a reforming furnace of the gas reformer and a furnace of the heating unit, or only the reforming furnace, wherein the acid gas component absorber includes a first outlet for releasing purified gas comprising H the regenerator includes a first outlet for releasing the recovery gas to the recovery gas introduction line, a second outlet for supplying a lean solvent to the acid gas component absorber, and an inlet for receiving a rich solvent from the acid gas component absorber.