2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing

Editors:	Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A
Publisher:	Flogen Star OUTREACH
Publication Year:	2016
Pages:	480 pages
ISBN:	978-1-987820-46-1
ISSN:	2291-1227 (Metals and Materials Processing in a Clean Environment Series)

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Development of technologies for environmentally harmonized steelmaking process

Shigeaki Tonomura¹; Naoki Kikuchi²; Natsuo Ishiwata³; Shin Tomisaki⁴; Yukio Tomita⁵;
¹NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, Japan; ²KOBE STEEL,LTD., Arai-cho Takasago, Japan; ³JFE STEEL CORPORATION, Chiyoda-ku, Japan; ⁴NIPPON STEEL & SUMIKIN ENGINEERING CO.,LTD., Kitakyushu, Japan; ⁵NISSHIN STEEL CO.,LTD., Chiyoda-ku, Japan;
Type of Paper: Plenary
Id Paper: 16
Topic: 3

Abstract:

Japanese steel maker (four blast furnace steel makers and one engineering company) have been executed "Development of technologies for environmentally harmonized steelmaking process, 'COURSE50' "(CO2 Ultimate Reduction in Steelmaking process by innovative technology for Cool Earth 50) since February 2008. This project is a national project commissioned by the New Energy and Industrial Technology Development Organization (NEDO).
The target of COURSE50 is a mitigation of approximately 30% in CO2 emissions in the integrated steel plant. Two technologies are investigated, which are a) Reduction of iron ore by using hydrogen and hydrocarbon-containing coke oven gas additionally to curb CO2 emissions from blast furnaces, and b) Separation and recovery of CO2 from blast furnace gas with chemical absorption method and physical adsorption method by effective utilization of unused waste heat in steel works.
In case of a) the main task is conservation of heat balances of local parts and whole of blast furnaces. In case of b) the main task is how to improve the energy consumption of chemical absorption and physical adsorption, not only the improvement of agents and materials but also the process flow.
Keywords
CO2 emissions mitigation, Steelworks, Iron ore reduction using hydrogen, Separation and recovery of CO2 from blast furnace gas, Unused exhaust heat in steelworks.

Keywords:

Blast; CO2; Energy; Hydrogen; Sustainability;


References:

[1] T. Miwa,H. Okuda ,CO2 Ultimate Reduction in Steelmaking Process by Innovative Technology for Cool Earth 50(COURSE50), J.Jpn.Inst Energ. 89(2010), 28-35
[2] H.Ueno, S.Endo, S.Tomomura, N.Ishiwata, Outline of CO2 Ultimate Reduction in Steelmaking Process by Innovative Technology for Cool Earth 50(COURSE50 Project), J. Jpn. Inst. Energy, 94(2015),1277-1283
[3] S. Watakabe, K. Miyagawa, S. Matsuzaki, T. Inada, Y. Tomita, K. Saito, M. Osame, P. Sikström, L. S. Ökvist, J. Wikstrom, Operation Trial of Hydrogenous Gas Injection of COURSE50 Project at an Experimental Blast Furnace, ISIJ Int., 53(2013),2065-2071
[4] K.Takatani, T.Inada, Y.Ujisawa, Three-dimensional dynamic simulator for blast furnace, ISIJ Int.,39(1999),15-22
[5] S.Watakabe, Current progress on COURSE50 project - recent results on H2 reduction including LKAB EBF’s experiments and CO2 capture, IEAGHG/IETS Iron and Steel Industry CCUS and Process Integration workshop, Tokyo, Japan(2013)
[6] H. Saima, IEAGHG/IETS Iron and Steel Industry CCUS and Process Integration workshop, Tokyo, Japan(2013)

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Cite this article as:

Tonomura S, Kikuchi N, Ishiwata N, Tomisaki S, Tomita Y. Development of technologies for environmentally harmonized steelmaking process. In: Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A, editors. Sustainable Industrial Processing Summit SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing. Volume 6. Montreal(Canada): FLOGEN Star Outreach. 2016. p. 51-60.