Title:
SYSTEM FOR CARBON DIOXIDE CAPTURE AND CARBON RECYCLING FOR STEEL MILL
Document Type and Number:
WIPO Patent Application WO/2023/140439
Kind Code:
A1
Abstract:
The present invention relates to a system for carbon dioxide capture and carbon recycling for a steel mill, wherein a system for carbon dioxide capture and carbon recycling for a steel mill according to an embodiment of the present invention is characterized by comprising: one or more fluidized bed reduction furnaces for reducing fine iron ore to reduced iron by reacting the fine iron ore with a reducing gas; a first discharge means for discharging exhaust gas generated in the one or more fluidized bed reduction furnaces; a melting furnace that is connected to the fluidized bed reduction furnace and melts the reduced iron produced in the fluidized bed reduction furnace so as to produce molten iron; a second discharge means for discharging exhaust gas generated in the melting furnace; and a reactor which, when connected respectively to the first discharge means and the second discharge means so as to receive the exhaust gas respectively discharged from the fluidized bed reduction furnace and the melting furnace as a reducing gas, captures carbon dioxide in the reducing gas by reacting same with a basic alkali mixed solution, and then collects a reactant comprising the captured carbon dioxide, and injects, into the fluidized bed reduction furnace, the reducing gas from which the carbon dioxide has been removed, wherein the reactor separates a carbon dioxide reactant and a waste solution from the reactant, and stores the separated carbon dioxide reactant for recycling.
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Inventors:
LEE CHEOL (KR)
Application Number:
PCT/KR2022/008627
Publication Date:
July 27, 2023
Filing Date:
June 17, 2022
Export Citation:
Assignee:
LOWCARBON CO LTD (KR)
International Classes:
B01D53/14; B01D47/06; B01D53/78; B01D53/79; B04B5/10; C01D7/00; C02F1/66
Foreign References:
| KR101219789B1 | 2013-01-09 | |||
| KR20150048473A | 2015-05-07 | |||
| KR101773813B1 | 2017-09-01 | |||
| JPH07318036A | 1995-12-08 | |||
| KR100935997B1 | 2010-01-08 |
Attorney, Agent or Firm:
NURY PATENT LAW FIRM (KR)
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