SYSTEM AND METHOD FOR DIRECT RECOVERY Russian patent published in 2022 - IPC C21B13/00 

FIELD: direct reduction systems.

SUBSTANCE: inventions group relates to a direct reduction system and method, in particular for the production of iron by direct reduction of iron ore using a reducing gas. The direct reduction system for the direct reduction of iron oxides contains a reactor (1) having a reduction area (2) and configured to load iron ore oxides from above, a purification and supply line (11) for purifying process gases in order to obtain a mixture of reducing gas and to supply mixture of reducing gas into region (2) reduction, recovery and purification line (10) for recovery and purification of the exhaust gas leaving the reactor (1), which is connected upstream to the reactor (1), and downstream to the purification and supply line (11), in which at least one bypass channel (30) configured to redirect at least one part of the reducing gas mixture from the cleaning and supply line (11) to the reduction and cleaning line (10).

EFFECT: invention makes it possible to regulate the flow rate of the reducing gas supplied to the reactor.

15 cl, 3 dwg