Steelmaking method and associated network of plants
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United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Dec 7, 2022
filing date -
Dec 7, 2022
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Abstract
A Steel manufacturing method including the step of producing direct reduced iron (12) and a reduction top gas (13) in a direct reduction plant (1) using a reducing gas (11), the reduction top (13) being at least partly (13A) recycled as reducing gas (11), producing hot metal and a blast furnace top gas (21) in a blast furnace (2), wherein from 200 Nm3 to 700 Nm3 of hydrogen (20) per ton of hot metal to be produced are injected and the blast furnace top gas (21A) being at least partly sent to a biochemical plant (4) to produce hydrocarbons and producing molten metal and electric furnace gas in an electric furnace (3) using at least a part of the produced direct reduced iron (12).
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