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Energy analysis of a blast-furnace system operating with the Corex process and CO2 removal

Author

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  • Ziebik, Andrzej
  • Lampert, Krzysztof
  • Szega, Marcin

Abstract

The integration of the COREX process with the blast-furnace process, the installation of CO2 removal and gas-and-steam CHP plant displays many energy and ecological advantages. The application of COREX gas after the removal of CO2 as hot reducing gas leads first of all to a saving of coke. Besides the reduction of the consumption of coke, also the consumption of blast, high-purity oxygen, the amount and lower heating value (LHV) of blast-furnace gas are changed, as well as the production of electricity in the recovery turbine, the consumption of blast-furnace gas in the Cowper stoves and the amount of blast-furnace gas supplied to the gas-energy subsystem of the ironworks. Related to a unit amount of pig iron, these quantities are called energy characteristics of the blast-furnace assembly. They may be used to assess the energy process effects of applying COREX gas in the blast-furnace process. In order to assess the influence of injecting COREX gas into the thermal reserve zone, the zone balance method of the blast-furnace process has been used.

Suggested Citation

  • Ziebik, Andrzej & Lampert, Krzysztof & Szega, Marcin, 2008. "Energy analysis of a blast-furnace system operating with the Corex process and CO2 removal," Energy, Elsevier, vol. 33(2), pages 199-205.
    • Handle: RePEc:eee:energy:v:33:y:2008:i:2:p:199-205
    DOI: 10.1016/j.energy.2007.09.003
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    Citations

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    Cited by:

    1. Zhang, Wei & Zhang, Juhua & Xue, Zhengliang, 2017. "Exergy analyses of the oxygen blast furnace with top gas recycling process," Energy, Elsevier, vol. 121(C), pages 135-146.
    2. Hocine, Labar & Yacine, Djeghader & Kamel, Bounaya & Samira, Kelaiaia Mounia, 2009. "Improvement of electrical arc furnace operation with an appropriate model," Energy, Elsevier, vol. 34(9), pages 1207-1214.
    3. Lampert, Krzysztof & Ziebik, Andrzej & Stanek, Wojciech, 2010. "Thermoeconomical analysis of CO2 removal from the Corex export gas and its integration with the blast-furnace assembly and metallurgical combined heat and power (CHP) plant," Energy, Elsevier, vol. 35(2), pages 1188-1195.
    4. Suopajärvi, Hannu & Pongrácz, Eva & Fabritius, Timo, 2013. "The potential of using biomass-based reducing agents in the blast furnace: A review of thermochemical conversion technologies and assessments related to sustainability," Renewable and Sustainable Energy Reviews, Elsevier, vol. 25(C), pages 511-528.

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