Title:
STEELMAKING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/085385
Kind Code:
A1
Abstract:
A steelmaking method according to an embodiment of the present invention comprises the steps of: introducing a first raw material into a blast furnace to produce pig iron; introducing a second raw material into an electric arc furnace to produce a first molten steel; and introducing the pig iron, the first molten steel, and steel scraps into a converter to produce a second molten steel. The amount (K) of carbon dioxide emitted during the production of one ton of the second molten steel is defined by expression 1. The amount (K) of carbon dioxide emitted during the production of one ton of the second molten steel satisfies expression 2. [Expression 1] the amount (K) of carbon dioxide emitted during the production of one ton of the second molten steel = α×X+β×Y+γ×Z [Expression 2] the amount (K) of carbon dioxide emitted during the production of one ton of the second molten steel <α
Inventors:
CHOI JAE YOUN (KR)
Application Number:
PCT/KR2023/011152
Publication Date:
April 25, 2024
Filing Date:
July 31, 2023
Export Citation:
Assignee:
HYUNDAI STEEL CO (KR)
International Classes:
C21B5/00; C21B13/12; C21C5/52
Foreign References:
| JP2011111625A | 2011-06-09 | |||
| JP2009102697A | 2009-05-14 | |||
| JP2012092435A | 2012-05-17 | |||
| KR101818372B1 | 2018-01-12 | |||
| KR20200005848A | 2020-01-17 |
Attorney, Agent or Firm:
LEE, Kwan Ho (KR)
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