Decarbonization options of the iron and steelmaking industry based on a three-dimensional analysis

Abstract

Decarbonization is a critical issue for peaking CO₂ emissions of energy-intensive industries, such as the iron and steel industry. The decarbonization options of China’s ironmaking and steelmaking sector were discussed based on a systematic three-dimensional low-carbon analysis from the aspects of resource utilization (Y), energy utilization (Q), and energy cleanliness which is evaluated by a process general emission factor (PGEF) on all the related processes, including the current blast furnace (BF)—basic oxygen furnace (BOF) integrated process and the specific sub-processes, as well as the electric arc furnace (EAF) process, typical direct reduction (DR) process, and smelting reduction (SR) process. The study indicates that the three-dimensional aspects, particularly the energy structure, should be comprehensively considered to quantitatively evaluate the decarbonization road map based on novel technologies or processes. Promoting scrap utilization (improvement of Y) and the substitution of carbon-based energy (improvement of PGEF) in particular is critical. In terms of process scale, promoting the development of the scrap-based EAF or DR—EAF process is highly encouraged because of their lower PGEF. The three-dimensional method is expected to extend to other processes or industries, such as the cement production and thermal electricity generation industries.

Keywords

peak CO₂ emission / low carbon management / decarbonization option / energy-intensity industry / ironmaking and steelmaking

References

[1] Wang H, Lu X, Deng Y, et al. China’s CO₂ peak before 2030 implied from characteristics and growth of cities. Nat. Sustainability, 2019, 2(8): 748.

[2] Liu Z, Guan DB, Moore S, Lee H, Su J, Zhang Q. Climate policy: Steps to China’s carbon peak. Nature, 2015, 522(7556): 279.

[3] Guan DB, Shan YL, Liu Z, He KB. Performance assessment and outlook of China’s emission-trading scheme. Engineering, 2016, 2(4): 398.

[4] Daehn K, Basuhi R, Gregory J, Berlinger M, Somjit V, Olivetti EA. Innovations to decarbonize materials industries. Nat. Rev. Mater., 2022, 7(4): 275.

[5] Raabe D, Tasan CC, Olivetti EA. Strategies for improving the sustainability of structural metals. Nature, 2019, 575(7781): 64.

[6] World Steel Association, Steel Statistical Yearbook 2021, Brussels, Belgium, 2021 [February 2, 2022]. http://www.worldsteel.org

[7] Guo ZC, Fu ZX. Current situation of energy consumption and measures taken for energy saving in the iron and steel industry in China. Energy, 2010, 35(11): 4356.

[8] Wu WQ, Li YJ, Zhu TY, Cao WJ. CO₂ emission in iron and steel making industry and its reduction prospect. Chin. J. Process Eng., 2013, 13, 175

[9] Brunke JC, Blesl M. A plant-specific bottom-up approach for assessing the cost-effective energy conservation potential and its ability to compensate rising energy-related costs in the German iron and steel industry. Energy Policy, 2014, 67, 431.

[10] Karali N, Xu TF, Sathaye J. Reducing energy consumption and CO₂ emissions by energy efficiency measures and international trading: A bottom-up modeling for the U.S. iron and steel sector. Appl. Energy, 2014, 120, 133.

[11] Price L, Sinton J, Worrell E, Phylipsen D, Xiulian H, Ji L. Energy use and carbon dioxide emissions from steel production in China. Energy, 2002, 27(5): 429.

[12] Siitonen S, Tuomaala M, Ahtila P. Variables affecting energy efficiency and CO₂ emissions in the steel industry. Energy Policy, 2010, 38(5): 2477.

[13] Tanaka K. A comparison study of EU and Japan methods to assess CO₂ emission reduction and energy saving in the iron and steel industry. Energy Policy, 2012, 51, 578.

[14] Wang XL, Lin BQ. How to reduce CO₂ emissions in China’s iron and steel industry. Renewable Sustainable Energy Rev., 2016, 57, 1496.

[15] Zhao XC, Bai H, Lu X, Shi Q, Han JH. A MILP model concerning the optimisation of penalty factors for the short-term distribution of byproduct gases produced in the iron and steel making process. Appl. Energy, 2015, 148, 142.

[16] Zhao XC, Bai H, Shi Q, Lu X, Zhang ZH. Optimal scheduling of a byproduct gas system in a steel plant considering time-of-use electricity pricing. Appl. Energy, 2017, 195, 100.

[17] H.M. Na, J.C. Sun, Z.Y. Qiu, et al., A novel evaluation method for energy efficiency of process industry—A case study of typical iron and steel manufacturing process, Energy, 233(2021), art. No. 121081.

[18] W.Q. Long, S.S. Wang, C.Y. Lu, et al., Quantitative assessment of energy conservation potential and environmental benefits of an iron and steel plant in China, J. Cleaner Prod., 273(2020), art. No. 123163.

[19] J.L. Suer, M. Traverso, and F. Ahrenhold, Carbon footprint of scenarios towards climate-neutral steel according to ISO 14067, J. Cleaner Prod., 318(2021), art. No. 128588.

[20] Ma KH, Deng JY, Wang G, Zhou Q, Xu J. Utilization and impacts of hydrogen in the ironmaking processes: A review from lab-scale basics to industrial practices. Int. J. Hydrogen Energy, 2021, 46(52): 26646.

[21] J.C. Sun, H.M. Na, T.Y. Yan, et al., A comprehensive assessment on material, exergy and emission networks for the integrated iron and steel industry, Energy, 235(2021), art. No. 121429.

[22] X.Y. Zhang, K.X. Jiao, J.L. Zhang, and Z.Y. Guo, A review on low carbon emissions projects of steel industry in the World, J. Cleaner Prod., 306(2021), art. No. 127259.

[23] Tang J, Chu MS, Li F, Feng C, Liu ZG, Zhou YS. Development and progress on hydrogen metallurgy. Int. J. Miner. Metall. Mater., 2020, 27(6): 713.

[24] Fischedick M, Marzinkowski J, Winzer P, Weigel M. Techno-economic evaluation of innovative steel production technologies. J. Cleaner Prod., 2014, 84, 563.

[25] Hu CQ, Han XW, Li ZH, Zhang CX. Comparison of CO₂ emission between COREX and blast furnace iron-making system. J. Environ. Sci., 2009, 21, S116.

[26] Quader MA, Ahmed S, Ghazilla RAR, Ahmed S, Dahari M. A comprehensive review on energy efficient CO₂ breakthrough technologies for sustainable green iron and steel manufacturing. Renewable Sustainable Energy Rev., 2015, 50, 594.

[27] Hasanbeigi A, Arens M, Price L. Alternative emerging ironmaking technologies for energy-efficiency and carbon dioxide emissions reduction: A technical review. Renewable Sustainable Energy Rev., 2014, 33, 645.

[28] Zhu R, Han BC, Dong K, Wei GS. A review of carbon dioxide disposal technology in the converter steelmaking process. Int. J. Miner. Metall. Mater., 2020, 27(11): 1421.

[29] Strezov V, Evans A, Evans T. Defining sustainability indicators of iron and steel production. J. Cleaner Prod., 2013, 51, 66.

[30] Zhang SH, Worrell E, Crijns-Graus W, Wagner F, Cofala J. Co-benefits of energy efficiency improvement and air pollution abatement in the Chinese iron and steel industry. Energy, 2014, 78, 333.

[31] Ariyama T, Sato M. Optimization of ironmaking process for reducing CO₂ emissions in the integrated steel works. ISIJ Int., 2006, 46(12): 1736.

[32] Bai H, Liu P, Li HX, Zhao LH, Cang DQ. Neelameggham NR, Belt CK, Jolly M, Reddy RG, Yurko JA. Analysis of carbon emission reduction of China’s integrated steelworks. Energy Technology 2011: Carbon Dioxide and Other Greenhouse Gas Reduction Metallurgy and Waste Heat Recovery, 2011, Hoboken, John Wiley & Sons, Inc., 253.

[33] Germeshuizen LM, Blom PWE. A techno-economic evaluation of the use of hydrogen in a steel production process, utilizing nuclear process heat. Int. J. Hydrogen Energy, 2013, 38(25): 10671.

[34] da Costa AR, Wagner D, Patisson F. Modelling a new, low CO₂ emissions, hydrogen steelmaking process. J. Cleaner Prod., 2013, 46, 27.

[35] Johansson MT. Bio-synthetic natural gas as fuel in steel industry reheating furnaces — A case study of economic performance and effects on global CO₂ emissions. Energy, 2013, 57, 699.

[36] Guo DB, Zhu LD, Guo S, et al. Direct reduction of oxidized iron ore pellets using biomass syngas as the reducer. Fuel Process. Technol., 2016, 148, 276.

[37] Helle H, Helle M, Saxén H, Pettersson F. Mathematical optimization of ironmaking with biomass as auxiliary reductant in the blast furnace. ISIJ Int., 2009, 49(9): 1316.

[38] Sodsai P, Rachdawong P. The Current situation on CO₂ emissions from the steel industry in Thailand and mitigation options. Int. J. Greenhouse Gas Control, 2012, 6, 48.

[39] Suopajärvi H, Pongrácz E, Fabritius T. Bioreducer use in Finnish blast furnace ironmaking — Analysis of CO₂ emission reduction potential and mitigation cost. Appl. Energy, 2014, 124, 82.

[40] Judge WD, Paeng J, Azimi G. Electrorefining for direct decarburization of molten iron. Nat. Mater., 2022, 21(10): 1130.

[41] Asanuma M, Ariyama T, Sato M, et al. Development of waste plastics injection process in blast furnace. ISIJ Int., 2000, 40(3): 244.

[42] Ziębik A, Stanek W. Forecasting of the energy effects of injecting plastic wastes into the blast furnace in comparison with other auxiliary fuels. Energy, 2001, 26(12): 1159.

[43] Meng M, Niu DX, Shang W. CO₂ emissions and economic development: China’s 12th five-year plan. Energy Policy, 2012, 42, 468.

[44] Pinto RGD, Szklo AS, Rathmann R. CO₂ emissions mitigation strategy in the Brazilian iron and steel sector — From structural to intensity effects. Energy Policy, 2018, 114, 380.

[45] Chen WY, Yin X, Ma D. A bottom-up analysis of China’s iron and steel industrial energy consumption and CO₂ emissions. Appl. Energy, 2014, 136, 1174.

[46] Hasanbeigi A, Price L, Zhang CX, Aden N, Li XP, Shangguan FQ. Comparison of iron and steel production energy use and energy intensity in China and the U.S.. J. Cleaner Prod., 2014, 65, 108.

[47] Hasanbeigi A, Morrow W, Sathaye J, Masanet E, Xu TF. A bottom-up model to estimate the energy efficiency improvement and CO₂ emission reduction potentials in the Chinese iron and steel industry. Energy, 2013, 50, 315.

[48] Li Y, Zhu L. Cost of energy saving and CO₂ emissions reduction in China’s iron and steel sector. Appl. Energy, 2014, 130, 603.

[49] Worrell E, Price L, Martin N. Energy efficiency and carbon dioxide emissions reduction opportunities in the US iron and steel sector. Energy, 2001, 26(5): 513.

[50] Bai H, Lu X, Li HX, et al. Salazar-Villalpando MD, Neelameggham NR, Guillen DP, Pati S, Krumdick GK, et al. The relationship between energy consumption and CO₂ Emissions in iron and steel making. Energy Technology 2012: Carbon Dioxide Management and Other Technologies, 2012, Hoboken, John Wiley & Sons, Inc., 125

[51] Lu X, Bai H, Zhao LH, Liu XT, Cang DQ. Relationship between energy consumption and CO₂ emission of iron and steel plant. J. Univ. Sci. Technol. Beijing, 2012, 34, 1445

[52] Milford RL, Pauliuk S, Allwood JM, Müller DB. The roles of energy and material efficiency in meeting steel industry CO₂ targets. Environ. Sci. Technol., 2013, 47(7): 3455.

[53] Yu B, Li X, Shi L, Qian Y. Quantifying CO₂ emission reduction from industrial symbiosis in integrated steel Mills in China. J. Cleaner Prod., 2015, 103, 801.

[54] Zhang H, Dong L, Li HQ, Fujita T, Ohnishi S, Tang Q. Analysis of low-carbon industrial symbiosis technology for carbon mitigation in a Chinese iron/steel industrial park: A case study with carbon flow analysis. Energy Policy, 2013, 61, 1400.

[55] Shan YL, Liu Z, Guan DB. CO₂ emissions from China’s lime industry. Appl. Energy, 2016, 166, 245.

[56] Li H, Guo LF, Li ZQ, Song WC, Li YQ. Research of low-carbon mode and on limestone addition instead of lime in the BOF steelmaking. J. Iron Steel Res. Int., 2010, 17(Suppl. 2): 23

[57] Ziebik A, Lampert K, Szega M. Energy analysis of a blast-furnace system operating with the COREX process and CO₂ removal. Energy, 2008, 33(2): 199.

[58] Xu H, Qian H, Zhou YS, Li ZY. MIDREX shaft technology in COREX—DR combined process at SALDANHA steel. World Iron Steel, 2010, 10(2): 6

[59] Jin XD. Choice of non-coking ironmaking process. Iron Steel, 1998, 33(4): 11

[60] Kuang ZH, Lin JJ, Li XQ. Performance of Coal used in COREX Technological Process. Ironmaking, 2008, 27(4): 60

[61] Wang L, Chen LH, Lv HO. Development situation of COREX smelting reduction process. J. Shenyang Inst. Eng. Nat. Sci., 2006, 2, 373

[62] Liu LY, Ji HG, Lü XF, et al. Mitigation of greenhouse gases released from mining activities: A review. Int. J. Miner. Metall. Mater., 2021, 28(4): 513.

[63] Pauliuk S, Milford RL, Müller DB, Allwood JM. The steel scrap age. Environ. Sci. Technol., 2013, 47(7): 3448.

[64] D. Kushnir, T. Hansen, V. Vogl, and M. Åhman, Adopting hydrogen direct reduction for the Swedish steel industry: A technological innovation system (TIS) study, J. Cleaner Prod., 242(2020), art. No. 118185.

[65] Vogl V, Åhman M, Nilsson LJ. Assessment of hydrogen direct reduction for fossil-free steelmaking. J. Cleaner Prod., 2018, 203, 736.