IRON MANUFATURING FACILITY AND METHOD FOR MANUFACTURING REDUCED IRON

WIPO Patent Application WO/2021/220555

A1

Provided is an iron manufacturing facility which, when reduced iron is to be manufactured from iron oxide, contributes to the achievement of a method that enables energy conservation and a reduction in the amount of CO2 emissions.　The iron manufacturing facility comprises: a blast furnace that reduces iron oxide; a reduction furnace that reduces iron oxide; a methane synthesis device that synthesizes methane from blast furnace gas including hydrogen, carbon monoxide, and carbon dioxide produced as byproducts from the blast furnace and/or furnace top gas including hydrogen, carbon monoxide, and carbon dioxide emitted from the furnace top of the reduction furnace, and hydrogen gas; a blowing device that blows the methane gas synthesized by the methane synthesis device into the blast furnace; a heating reformer that heats or heats and reforms the blast furnace gas and/or the furnace top gas and the methane gas synthesized by the methane synthesis device, and forms a reducing gas containing carbon monoxide gas and hydrogen gas; a reducing gas blowing device that blows the reducing gas into the reduction furnace; and a supply path through which the furnace top gas is supplied to the methane synthesis device and/or the heating reformer.

TAKAHASHI KOICHI (JP)
OZAWA SUMITO (JP)
KAWASHIRI YUKI (JP)
MORITA YUYA (JP)
NOUCHI TAIHEI (JP)
SATO MICHITAKA (JP)

PCT/JP2021/000237

November 04, 2021

January 06, 2021

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JFE STEEL CORP (JP)

C21B5/00; C21B7/00; C21B13/00; F27D17/00

JP2011225969A	2011-11-10
JP2012007213A	2012-01-12
JPS6342320A	1988-02-23
JP2017088912A	2017-05-25
JP6190522B2	2017-08-30

SUGIMURA Kenji (JP)

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