Title:
IRON MAKING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/087036
Kind Code:
A1
Abstract:
Provided is an iron making method whereby carbon dioxide emission is reduced while minimizing influences on the reactions occurring in a current iron making process and on the operation thereof. The iron making method comprises: recovering some or all of carbon dioxide from a carbon dioxide-containing gas discharged from an iron making process for producing reduced iron or pig iron from iron oxide; subjecting the recovered carbon dioxide to reduction reaction in which CO2-free energy is used, for example, electrolysis, thereby yielding oxygen and a carbon source comprising carbon monoxide and/or solid carbon; and using at least some of the yielded carbon source as a reducing material in the iron making process from which the carbon dioxide-containing gas was discharged.
Inventors:
KATO Yukitaka (12-1 Ookayama 2-chom, Meguro-ku Tokyo 50, 〒1528550, JP)
加藤 之貴 (〒50 東京都目黒区大岡山２丁目１２番１号 国立大学法人東京工業大学内 Tokyo, 〒1528550, JP)
加藤 之貴 (〒50 東京都目黒区大岡山２丁目１２番１号 国立大学法人東京工業大学内 Tokyo, 〒1528550, JP)
Application Number:
JP2011/050400
Publication Date:
July 21, 2011
Filing Date:
January 13, 2011
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
住友金属工業株式会社 (〒41 大阪府大阪市中央区北浜４丁目５番３３号 Osaka, 〒5410041, JP)
TOKYO INSTITUTE OF TECHNOLOGY (12-1, Ookayama 2-chome Meguro-k, Tokyo 50, 〒1528550, JP)
国立大学法人東京工業大学 (〒50 東京都目黒区大岡山２丁目１２番１号 Tokyo, 〒1528550, JP)
住友金属工業株式会社 (〒41 大阪府大阪市中央区北浜４丁目５番３３号 Osaka, 〒5410041, JP)
TOKYO INSTITUTE OF TECHNOLOGY (12-1, Ookayama 2-chome Meguro-k, Tokyo 50, 〒1528550, JP)
国立大学法人東京工業大学 (〒50 東京都目黒区大岡山２丁目１２番１号 Tokyo, 〒1528550, JP)
International Classes:
C21B13/00; C21B5/00; F27D17/00
Attorney, Agent or Firm:
HIROSE Shoichi (Tozan Building, 4-2 Nihonbashi Honcho 4-chome, Chuo-k, Tokyo 23, 〒1030023, JP)
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