Application of Biomass Pellets for Iron Ore Sintering

Abstract:

The use of biomass as fuel might solve several technological and environmental issues and overcome certain challenges of sinter production. In particular, as revealed by comprehensive analyses, biomass can be used as fuel for iron ore sintering. In this study, we investigate the use of some raw and pyrolysis-processed biomass pellet types, namely wood, sunflower husks (SFH), and straw, for iron ore sintering. In the experiments, the pyrolysis temperature was set to 673, 873, 1073, and 1273 K, and the proportion of biomass in the fuel composition was set to 25%. It was established that the addition of biofuels to the sintering blend leads to an increase in the gas permeability of the sintered layer. The analysis of the complex characteristics of the sintering process and the sinter strength showed the high potential of wood and sunflower husk pellets pyrolyzed at 1073 and 873 K, respectively, for iron ore sintering. The analysis of the macrostructure of the sinter samples obtained using biomaterials revealed that with higher pyrolysis temperatures; the materials tend to have greater sizes and higher amounts of pores and cracks. The composition analyses of the resultant sinters revealed that with higher temperature, the FeO content of the sinters tends to increase.

• Periodical: Materials Science Forum (Volume 1045)
• Pages: 17-31
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1045.17
• Online since: September 2021
• Authors: Lina Kieush*, Andrii Koveria, Zuo Qiao Zhu, Maksym Boyko, Artem Sova, Vadym Yefimenko
• Keywords: Bio-Char, Biomass Pellets, Carbonisation, Coke Breeze, Fuel, Iron Ore, Sintering

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