Complex solid-phase reduction in a blast furnace of self-healing pellets of cold agglomeration containing by-product carbon materials of metallurgical production

Authors

  • A.A. Vaniukov Ukrainian State University of Science and Technologies, Dnipro, Ukraine
  • V.P. Ivashchenko Ukrainian State University of Science and Technologies, Dnipro, Ukraine
  • L.Kh. Ivanova Ukrainian State University of Science and Technologies, Dnipro, Ukraine
  • M. Kovalov Ukrainian State University of Science and Technologies, Dnipro, Ukraine
  • Ye. Tsybulia Ukrainian State University of Science and Technologies, Dnipro, Ukraine

DOI:

https://doi.org/10.15802/tpm.2.2025.15

Keywords:

self reducing pellets, direct and indirect reduction degree, degree of metallization, temperature, carbon

Abstract

The reactions of direct and indirect reduction occurring during the heat treatment of self reducing pellets (SRP) have been studied. In this investigation Blast furnace (BF) sludge which contains particles of coke, has been included in the SRP blend as a source of solid reductant. In the SRP as a part ot the blast furnace burden occur the reactions simultaneously: inside of SRP-direct reduction by Csolid; gasification of carbon and indirect reduction by CO; and outside of SRP-indirect reduction of iron bearing oxides by reducing gas coming from the hearth of blast furnace through the column of charged materials. The experiments was performed continuously from the start temperature (~200 ˚C) to the experimental temperature (500 ˚C; 700 ˚C; 900 ˚C; 1100 ˚C) in argon free environment. Upon reaching the desired temperature argon was replaced by hydrogen during 30 minutes. After that the reduced probe of SRP was cooled in argon. The objective of the present work is to research a quantitate ratio of degree direct reduction inside of SRP and degree of indirect reduction outside of SRP on the top of the blast furnace.

References

H.Mizoguchi, H.Suzuki, S.Hayashi. Influence of Mixing Coal Composite Iron Ore Hot Briquettes on Blast Furnace Simulated Reaction Behavior in a Packed Mixed Bed. ISIJ International, Vol. 51 (2011), No. 8, pp. 1247–1254. https://doi.org/10.2355/isijinternational.51.1247

J.P. Moon, V. Sahajwalla, J. Bultitude-Paull. Reduction of ultra-fine iron oxide by carbon in a briquetted form. The Iron&Steel society (ISS), organizer. Proceedings of the 58th ironmaking Conference, Chicago, USA (1999), pp. 591-597.

R.J. Fruehan. The rate of reduction of iron oxides by carbon. Metall Trans B, 8B (1977), pp. 279-286, https://doi.org/10.1007/BF02657657

Pascoal, A.d.L.; Rossoni, H.A.V.; Kaffash, H.; Tangstad, M.; Henriques, A.B. Study of the Physical Behaviour and the Carbothermal Reduction of Self-Reducing Briquettes Developed with Iron Ore Fines, Charcoal and Silica Fume Residues. Sustainability 2022, 14, 10963. https://doi.org/10.3390/su141710963

D.A. Kovalyov, B.P. Krikunov, A.A. Vanukov, A.B. Kuzin: Effectivness of carbon beering granulated iron beering feux in the blast furnace melt: Ferrous metallurgy- Bulletin of the Ferrous metallurgy information 2012, No.7, p.p. 49-54.

D.A. Kovalyov, A.A. Vanukov, B.P. Krikunov, S.A. Ivanov, V.P. Ivlev, V.E. Popov: Product in of the high basicity self reducing pellets on bounded of cement and blast furnace melt with there using: Metallurgical and mining industry, 2014 No.5 p.p. 2-4 (c. Dnipropetrovsk, Ukraine).

Matsui, M. Sawayama, A. Kasai, Y. Yamagata, F. Noma. Reduction behavior of carbon composite iron ore hot briquette in shaft furnace and scope on blast furnace performance reinforcement. ISIJ Int, 43 (12) (2003), pp. 1904-1912, https://doi.org/10.2355/isijinternational.43.1904

K. Higuchi, K. Kunitomo, S. Nomura. Reaction behaviors of various agglomerates in reducing the temperature of the thermal reserve zone of the blast furnace. ISIJ Int, 60 (11) (2020), pp. 2366-2375, https://doi.org/10.2355/isijinternational.ISIJINT-2020-115

H. Yokoyama, K. Higuchi, T. Ito, A. Oshio. Decrease in carbon consumption of a commercial blast furnace by using carbon composite iron ore ISIJ Int, 52 (11) (2012), pp. 2000-2006, 10.2355/isijinternational.52.2000

N.A. El-Hussiny, M.E.H. Shalabi. A self-reduced intermediate product from iron and steel plants waste materials using a briquetting process Powder Technol, 205 (2011), pp. 217-223, 10.1016/j.powtec.2010.09.017

D’Abreu, José Carlos; Kohler, Hélio M.; Takano, Cyro; Mourão, Marcelo Breda. SELF-REDUCING: INNOVATION AWARNESS, p. 2678-2696. 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, https://doi.org/10.5151/2594-357X-22685 https://abmproceedings.com.br/ptbr/article/self-reducing-innovation-awarness-1

J. Szekely, J.W. Evans. Studies in gas-solid reactions: Part I. A structural model for the reaction of porous oxides with a reducing gas. Metall Trans A, 2 (1971), pp. 1691-1698, https://doi.org/10.1007/BF02913895.

S. Ueda, et al. Reaction model and reduction behavior of carbon iron ore composite in blast furnace. ISIJ Int, 49 (6) (2009), pp. 827-836, 10.2355/isijinternational.49.827

M.C. Bagatini, V. Zymla, E. Osório, A.C.F. Vilel. Characterization and reduction behavior of mill scale. ISIJ Int, 51 (7) (2011), pp. 1072-1079, 10.2355/isijinternational.51.1072

B.D. Flores, I.V. Flores, M.C. Bagatini, E. Osório, A.C.F. Vilela Study on reducing and melting behavior of mill scale/petroleum coke blend. Tecnol Metal Mater Miner, 10 (4) (2013), pp. 365-374, 10.4322/tmm.2013.050

M.C. Bagatini, V. Zymla, E. Osório, A.C.F. Vilela. Carbon gasification in self-reducing mixtures. ISIJ Int, 54 (12) (2014), pp. 2687-2696, 10.2355/isijinternational.54.2687.

M.C. Bagatini, V. Zymla, E. Osório, A.C.F. Vilela. Scale recycling through self-reducing briquettes to use in EAF. ISIJ Int, 57 (12) (2017), pp. 2081-2089, 10.2355/isijinternational.ISIJINT-2017-242

F.B. Ferreira, A.R.R. Lima, E. Osório, A.C.F. Vilela, R. Deike. Self-reducing pellets composed of wastes from steelmaking production for their recycling. Tecnol Metal Mater Miner, 19 (2022), Article e2323, 10.4322/2176-1523.20222323

P. Paknahad, M. Askari, S.A. Shahahmadi. Cold-briquetted iron and carbon (CBIC): investigation of steelmaking behavior. J Mater Res Technol, 9 (2020), pp. 6655-6664, 10.1016/j.jmrt.2020.04.058. ISSN 2238-7854

M.C. Bagatini, T. Fernandes, R. Silva, D.F. Galvão, I.V. Flores. Mill scale and flue dust briquettes as alternative burden to low height blast furnaces. J Clean Prod, 276 (2020), Article 124332, 10.1016/j.jclepro.2020.124332. ISSN 0959-6526

L.R. Lemos, S.H.F.S. Rocha, L.F.A. Castro. Reduction disintegration mechanism of cold briquettes from blast furnace dust and sludge. J Mater Res Technol, 4 (3) (2015), pp. 278-282, 10.1016/j.jmrt.2014.12.002. ISSN 2238-7854

Wu, S., Chang, F., Zhang, J., Lu, H. (2017). Kinetics and Reduction Behavior of Self-reducing Briquettes Containing Blast Furnace Dust. In: Hwang, JY., et al. 8th International Symposium on High-Temperature Metallurgical Processing. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51340-9_58

E. Donskoi, D.L.S. Mcelwain, L.J. Wibberley. Estimation and modeling of parameters for direct reduction in iron ore/coal composites: Part II. Kinetic parameters. Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science, 34 (2) (Apr 2003), pp. 255-266, 10.1007/s11663-003-0059-0

B.-H. Huang, W.-K. Lu. Kinetics and mechanisms of reaction in iron ore/coal composites. ISIJ Int, 33 (10) (1993), pp. 1055-1061, 10.2355/isijinternational.33.1055

M.C. Mantovani, C. Takano. The strength and the high temperature behaviors of self-reducing pellets containing EAF dust. ISIJ Int, 40 (3) (2000), pp. 224-230, 10.2355/isijinternational.40.224

C. Takano, M.B. Mourão. Comparison of high temperature behavior of self-reducing pellets produced from iron ore with that of dust from sinter plant. ISIJ Int, 41 (Suppl) (2001), pp. S22-S26. 10.2355/isijinternational.41.Suppl_S22

M.B. Mourão, C. Takano. Self-reducing pellets for ironmaking: reaction rate and processing. Miner Process Extr Metall Rev, 24 (3–4) (2003), pp. 183-202, 10.1080/714856821

J. Moon, V. Sahajawalla. Investigation into the role of the boudouard reaction in self-reducing iron oxide and carbon briquettes. Metall Trans B, 37B (2006), pp. 215-221, 10.1007/BF02693151

P.M. Pereira, M.C. Bagatini. Influence of carbon content on mechanical properties of iron ore pellets. Tecnol Metal Mater Miner, 15 (4) (2018), pp. 481-487, 10.4322/2176-1523.20181524

K.M. Martins, J.C. D'Abreu, Jr.JH. Noldin. Carbon distribution and morphological aspects of the metallic iron generated during reduction of cold bonded self-reducing briquettes. Tecnol Metal Mater Miner, 2 (2) (2005), pp. 1-5, 10.4322/tmm.00202001

V. Strezov. Iron ore reduction using sawdust: experimental analysis and kinetic modelling. Renew Energy, 31 (12) (2006), pp. 1892-1905, 10.1016/j.renene.2005.08.032

S.E.L. Moujahid, A. Rist. The nucleation of iron on dense wustite: a morphological study. Metall Trans B, 19B (1988), pp. 787-802, 10.1007/BF02650198

J.L. Coleti, G.V.P. Manfredi, J.T. Vinhal, E. Junca, D.C.R. Espinosa, J.A.S. Tenório. Kinetic investigation of self-reduction basic oxygen furnace dust briquettes using charcoals from different biomass. J Mater Res Technol, 9 (6) (2020), pp. 13282-13293, 10.1016/j.jmrt.2020.09.061 ISSN 2238-7854

H. Konishi, K. Ichikawa, T. Usui. Effect of residual volatile matter on reduction of iron oxide in semi-charcoal composite pellets. ISIJ Int, 50 (3) (2010), pp. 386-389, 10.2355/isijinternational.50.386

M.C. Bagatini, T. Kan, T.J. Evans, V. Strezov. Iron ore reduction by biomass volatiles. J. Sustain. Metall, 7 (2021), pp. 215-226, 10.1007/s40831-021-00337-3

M.V.B. Gonçalves, L.M. Mendonça, I.V. Flores, M.C. Bagatini. Investigation of the Phenomena associated with iron ore reduction by raw biomass and charcoal volatiles. J. Sustain. Metall (2024), 10.1007/s40831-024-00851-0

Downloads

Published

2025-06-30

How to Cite

Vaniukov , A. ., Ivashchenko , V., Ivanova , L., Kovalov , M., & Tsybulia , Y. (2025). Complex solid-phase reduction in a blast furnace of self-healing pellets of cold agglomeration containing by-product carbon materials of metallurgical production. Theory and Practice of Metallurgy, (2), 122–127. https://doi.org/10.15802/tpm.2.2025.15

Issue

No. 2 (2025)

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors retain copyright of the published papers and grant to the publisher the non-exclusive right to publish the article, to be cited as its original publisher in case of reuse, and to distribute it in all forms and media. Articles will be distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence.

Authors can enter the separate, additional contractual arrangements for non-exclusive distribution of the published paper (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.