“Simulation of a Sponge Iron Production Process” Authors: Tor Onshus Affiliation: NTNU (Engineering Cybernetics) Reference: 1983, Vol 4, No 3, pp. 125-137.

Keywords: Sponge iron, shaft furnace, simulation, control

Abstract: A model for reduction of FeO with hydrogen in a countercurrent moving bed reactor is summarized. This model is a special case of a mor ecomplete model which also includes reduction of the higher oxides, hematite and magnetite, with a mixture of reducing gases, thus describing the production of direct-reduced iron from iron ores. Equations governing the heat and mass transfer between the gas and solid phase are not given here, but play an important role in the dynamic bahviour of the model.

The distributed parameter model is discretized, using Euler approximation for the time derivative and a backward difference ti approximate the spatial derivatives.

Parameters applying to a pilot plant are used when simulating the model to study the approximate behaviour of the pilot plant. The model is then used to test a controller arrangement, using single loop PI-controllers. The dynamic responses that are shown indicate that this controller arrangement can be satisfactory.

PDF (627 Kb)        DOI: 10.4173/mic.1983.3.1

Currently no DOI forward links to this article

References:
[1] ONSHUS, T., and KOLBEINSEN, L. (1981). Styring av svampjernprosesser. Matematisk modell for reduksjon av jernmalm med CO og H2 i motstrøms sjaktovn. SINTEF report, STF48 A81058.
[2] ONSHUS, T., and KOLBEINSEN, L. (1981). Styring av svampjernprosesser. Matematisk modell for reduksjon av FeO med H2 i motstrøms sjaktovn. SINTEF report, STF48 A81058.
[3] BIRD, R.B., STEWART, W.E., LIGHTFOOT, E.N. (1960). Transport phenomena (John Wiley and Sons).
[4] KUBASCHEWSKI, O., and ALCOCOOK, C.B. (1979). Metallurgical thermochemistry, 5th ed. (Pergamon Press, London).
[5] ONSHUS, T. (1977). CYPROS del 1 - Cybernetic Programs, SINTEF report, SFT48 F77075.


BibTeX:
@article{MIC-1983-3-1,
  title={{Simulation of a Sponge Iron Production Process}},
  author={Onshus, Tor},
  journal={Modeling, Identification and Control},
  volume={4},
  number={3},
  pages={125--137},
  year={1983},
  doi={10.4173/mic.1983.3.1},
  publisher={Norwegian Society of Automatic Control}
};