Development and progress on hydrogen metallurgy
来源期刊：International Journal of Minerals Metallurgy and Materials2020年第6期
论文作者：Jue Tang Man-sheng Chu Feng Li Cong Feng Zheng-gen Liu Yu-sheng Zhou
文章页码：713 - 723
摘 要：Hydrogen metallurgy is a technology that applies hydrogen instead of carbon as a reduction agent to reduce CO2 emission, and the use of hydrogen is beneficial to promoting the sustainable development of the steel industry. Hydrogen metallurgy has numerous applications,such as H2reduction ironmaking in Japan, ULCORED and hydrogen-based steelmaking in Europe; hydrogen flash ironmaking technology in the US; HYBRIT in the Nordics; Midrex H2TM by Midrex Technologies, Inc.（United States）; H2FUTURE by Voestalpine（Austria）; and SALCOS by Salzgitter AG（Germany）. Hydrogen-rich blast furnaces（BFs） with COG injection are common in China. Running BFs have been industrially tested by AnSteel, XuSteel, and BenSteel. In a currently under construction pilot plant of a coal gasification–gas-based shaft furnace with an annual output of 10000 t direct reduction iron（DRI）, a reducing gas composed of 57 vol% H2 and 38 vol% CO is prepared via the Ende method. The life cycle of the coal gasification–gas-based shaft furnace–electric furnace short process（30 wt% DRI + 70 wt% scrap） is assessed with 1 t of molten steel as a functional unit. This plant has a total energy consumption per ton of steel of 263.67 kg standard coal and a CO2 emission per ton of steel of 829.89 kg, which are superior to those of a traditional BF converter process. Considering domestic materials and fuels, hydrogen production and storage, and hydrogen reduction characteristics, we believe that a hydrogen-rich shaft furnace will be suitable in China. Hydrogen production and storage with an economic and large-scale industrialization will promote the further development of a full hydrogen shaft furnace.
Jue Tang1，Man-sheng Chu2，Feng Li1，Cong Feng1，Zheng-gen Liu1，Yu-sheng Zhou1
1. School of Ferrous Metallurgy, Northeastern University2. State Key Laboratory of Rolling and Automation, Northeastern University
摘 要：Hydrogen metallurgy is a technology that applies hydrogen instead of carbon as a reduction agent to reduce CO2 emission, and the use of hydrogen is beneficial to promoting the sustainable development of the steel industry. Hydrogen metallurgy has numerous applications,such as H2reduction ironmaking in Japan, ULCORED and hydrogen-based steelmaking in Europe; hydrogen flash ironmaking technology in the US; HYBRIT in the Nordics; Midrex H2TM by Midrex Technologies, Inc.（United States）; H2FUTURE by Voestalpine（Austria）; and SALCOS by Salzgitter AG（Germany）. Hydrogen-rich blast furnaces（BFs） with COG injection are common in China. Running BFs have been industrially tested by AnSteel, XuSteel, and BenSteel. In a currently under construction pilot plant of a coal gasification–gas-based shaft furnace with an annual output of 10000 t direct reduction iron（DRI）, a reducing gas composed of 57 vol% H2 and 38 vol% CO is prepared via the Ende method. The life cycle of the coal gasification–gas-based shaft furnace–electric furnace short process（30 wt% DRI + 70 wt% scrap） is assessed with 1 t of molten steel as a functional unit. This plant has a total energy consumption per ton of steel of 263.67 kg standard coal and a CO2 emission per ton of steel of 829.89 kg, which are superior to those of a traditional BF converter process. Considering domestic materials and fuels, hydrogen production and storage, and hydrogen reduction characteristics, we believe that a hydrogen-rich shaft furnace will be suitable in China. Hydrogen production and storage with an economic and large-scale industrialization will promote the further development of a full hydrogen shaft furnace.
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