Method for operation of blast furnace

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United States of America Patent

PATENT NO 10106863
APP PUB NO 20160326604A1
SERIAL NO

15110073

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Abstract

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A method for operation of a blast furnace able to greatly reduce the CO2 emission and enabling stable production of pig iron over a long period of time in a commercial blast furnace, that is, a method for operation of a blast furnace in which iron ore and coke are charged from a furnace top and is blown in pulverized coal from a usual tuyere, comprising blowing in a gas containing at least one of hydrogen and hydrocarbon from the usual tuyere together with the pulverized coal and blowing a gas comprised of a top gas of the blast furnace from which carbon dioxide and steam is removed from a shaft tuyere into the blast furnace.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL ENGINEERING CO LTD5-1 OSAKI 1-CHOME SHINAGAWA-KU TOKYO 141-8604

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inada, Takanobu Tokyo, JP 3 2
Sakai, Hiroshi Tokyo, JP 330 3676
Ujisawa, Yutaka Tokyo, JP 3 2

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