ISSN 2594-357X
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Abstract
The Corex process is beside the Finex technology the only economic and ecologic industrially realized alternative to the blast furnace route for the production of hot metal. Based on the nature of the Corex/Finex process using pure oxygen for the smelting process a high value export gas is produced. The export gas can be used for various purposes, e.g.: DRI Production; substitute fuel gas/natural gas for various heating purposes; power generation; chemical processes. Existing Corex plants at ArcelorMittal South Africa, JSW, Baosteel, Essar and the Finex plants Posco have already implemented different applications for export gas utilization to fully utilize the benefits of the Corex process for economic and efficient hot metal and steel production. Current trends in iron and steelmaking clearly show an increasing demand for DRI and high quality steel production. By using Corex export gas for DRI production the total fuel consumption can be lowered to approx. 550 kg/t products, which is far below traditional ironmaking requirements. Integrated plant concepts including a Corex DR combination offer solutions for future challenges of the ironand steelmaking industry, which include: economical hot metal and DRI production based on coal; raw material costs, raw material availability; high flexibility to react to market developments; reduction of CO2 emissions; need for integrated energy solutions; and waste free steel production. This paper will comprehensively focus on integrated concepts for combined hot metal and DRI production as an alternative way for economic steel production besides an update to the status of the Corex projects Essar Steel and Baosteel.
The Corex process is beside the Finex technology the only economic and ecologic industrially realized alternative to the blast furnace route for the production of hot metal. Based on the nature of the Corex/Finex process using pure oxygen for the smelting process a high value export gas is produced. The export gas can be used for various purposes, e.g.: DRI Production; substitute fuel gas/natural gas for various heating purposes; power generation; chemical processes. Existing Corex plants at ArcelorMittal South Africa, JSW, Baosteel, Essar and the Finex plants Posco have already implemented different applications for export gas utilization to fully utilize the benefits of the Corex process for economic and efficient hot metal and steel production. Current trends in iron and steelmaking clearly show an increasing demand for DRI and high quality steel production. By using Corex export gas for DRI production the total fuel consumption can be lowered to approx. 550 kg/t products, which is far below traditional ironmaking requirements. Integrated plant concepts including a Corex DR combination offer solutions for future challenges of the ironand steelmaking industry, which include: economical hot metal and DRI production based on coal; raw material costs, raw material availability; high flexibility to react to market developments; reduction of CO2 emissions; need for integrated energy solutions; and waste free steel production. This paper will comprehensively focus on integrated concepts for combined hot metal and DRI production as an alternative way for economic steel production besides an update to the status of the Corex projects Essar Steel and Baosteel.
Keywords
Corex; Export gas utilization; DRI; Fuel consumption.
Corex; Export gas utilization; DRI; Fuel consumption.
How to refer
Böhm, Christian;
Sterrer, Wolfgang;
Wurm., Johann.
COREX® AND DIRECT REDUCTION - AN IDEAL CONCEPT
FOR ECONOMIC AND ENVIRONMMENTAL FRIENDLY
STEEL PRODUCTION
,
p. 1327-1338.
In: 42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking,
Rio de Jabeiro,
2012.
ISSN: 2594-357X
, DOI 10.5151/2594-357X-22229
