Collective characteristics of nano scale powders by coke moving bed filter

Jun Ichiro Yagi, Susumu Okabe, Morgana Avila De Ribas, Hiroshi Nogami, Reijiro Takahashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Approximately 500 thousand tons of dust are generated annually from electric arc furnace (EAF) for scrap melting in Japan. The dust contains a large amount of metallic components such as zinc and iron. It should be recycled by separating zinc from iron through high temperature reduction and evaporation processes. Conventional processes consume very high energy and 30% of dust is wasted without recycling, therefore a high efficiency process is expected to be developed. A novel simple process to recover these metals is proposed with less energy consumption. The process is a combined process of a coke bed filter and a zinc condenser, which can recover metallic iron and zinc by directly separating them from high-temperature dust, exhausted from electric arc furnaces. This paper deals with the separation characteristics of the dust in the gas stream by a coke packed or a moving bed filter. The EAF dust contains nano scale powders which behave differently from over micron size powders.

Original languageEnglish
Title of host publication2nd International Meeting on Ironmaking and 1st International Symposium on Iron Ore and parallel event - 5th Japan-Brazil Symposium on Dust Processing-Energy-Environment on Metallurgical Industries
Pages517-530
Number of pages14
Publication statusPublished - 2004 Dec 1
Event2nd International Meeting on Ironmaking and 1st International Symposium on Iron Ore and Parallel Event- 5th Japan-Brazil Symposium on Dust Processing-Energy-Environment on Metallurgical Industries - Victoria, espirito Santo, Brazil
Duration: 2004 Sep 122004 Sep 15

Publication series

Name2nd International Meeting on Ironmaking and 1st International Symposium on Iron Ore and Parallel Event- 5th Japan-Brazil Symposium on Dust Processing-Energy-Environment on Metallurgical Industries
Volume1

Other

Other2nd International Meeting on Ironmaking and 1st International Symposium on Iron Ore and Parallel Event- 5th Japan-Brazil Symposium on Dust Processing-Energy-Environment on Metallurgical Industries
CountryBrazil
CityVictoria, espirito Santo
Period04/9/1204/9/15

Keywords

  • Coke Packed Bed
  • Cold Model
  • Dust
  • Electric arc furnace
  • Hold Up
  • Iron
  • Recycle
  • Zinc

ASJC Scopus subject areas

  • Engineering(all)

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