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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 1
SUMMARY:Update on the development of hydrogen-based ironmaking process at POSCO
DESCRIPTION:In line with the global steel industry’s common goal to meet the Paris Agreement, POSCO has declared in December 2020 the achievement of ‘Net-Zero Carbon’ by 2050. The first objective is 10% reduction in CO2 emission until 2030 improving the efficiency of blast furnace operation by using high grade ores, hydrogen-rich gas, and AI-based operation. The second objective is 50% reduction until 2040 incorporating electric arc furnaces and HyREX process. The latter is a new hydrogen ironmaking process under development by POSCO which will gradually replace the current blast furnaces. The third objective is to reach net zero by 2050.  Carbon-based ironmaking process will be completely replaced with hydrogen- and electricity-based process..
The HyREX process consists of multi-staged fluidized bed reactors (FBR) and electric smelting furnaces (ESF). Sinter feed is charged as the major iron source and hydrogen is the main reducing gas. The advantage of the direct use of sinter feed is in the availability and cost relative to high quality DR-grade pellets, whereas the larger amount of impurities in the form of gangue mineral need to be removed by slag-making in an electric smelting furnace. This route has the potential to resolve the restriction in the raw material shortages of H2-based DRI-EAF route.
HyREX demo plant engineering is under progress on a fast track based on more than 20 year of in-house commercial plant construction and operational experience of FINEX FBR and ferro-alloy ESF.  In this talk, the updated roadmap towards carbon neutrality of POSCO as well as the demo- and commercial-scale plant construction and process evaluation plan will be addressed. Additionally, the discussion on the R&D and pre-engineering results of hydrogen-based ironmaking process development will follow.

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