Title:
METHOD FOR OPERATING BLAST FURNACE, METHOD FOR PRODUCING HOT METAL, AND AUXILIARY FACILITY FOR BLAST FURNACE
Document Type and Number:
WIPO Patent Application WO/2023/162344
Kind Code:
A1
Abstract:
Provided is a method for operating a blast furnace, whereby it becomes possible to further reduce the amount of carbon dioxide discharged from the blast furnace under stable operation of the blast furnace. A regenerated organic substance is added to a reducing agent to be blown into the blast furnace, and the regenerated organic substance is produced using hydrogen and at least one of carbon monoxide and carbon dioxide in the blast furnace gas which is discharged from the blast furnace and has a heat generation amount Q of 4000 kJ/kg or more.
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| WO/2013/172047 | METHOD FOR LOADING RAW MATERIAL INTO BLAST FURNACE |
| JPH06100910 | OPERATION OF BLAST FURNACE |
Inventors:
UCHIDA SEIJI (JP)
TAKAHASHI KOICHI (JP)
KAWASHIRI YUKI (JP)
KASHIHARA YUSUKE (JP)
TAKAHASHI KOICHI (JP)
KAWASHIRI YUKI (JP)
KASHIHARA YUSUKE (JP)
Application Number:
PCT/JP2022/040553
Publication Date:
August 31, 2023
Filing Date:
October 28, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21B5/00; C07C29/151; C21B5/06; C21B7/00; F27D17/00
Foreign References:
| JP2006207009A | 2006-08-10 | |||
| JP2011084528A | 2011-04-28 | |||
| JPS63171804A | 1988-07-15 | |||
| JP2009235482A | 2009-10-15 | |||
| JP2002371307A | 2002-12-26 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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