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Thermodynamic assessment of aluminium production through carbosulphidation route

Conference Paper


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Abstract


  • Indirect carbothermal reduction of alumina for the production of aluminium has been claimed

    to be better compared to the existing Hall-Heroult process in-terms of energy usage,

    generation of perfluorocarbons and overall greenhouse gas emission. In the process, alumina is

    reduced to an intermediate compound which is then further reduced to Al. It has been shown

    from the previous thermodynamic study by the authors that high conversion of alumina can be

    obtained if it is reduced to Al-chloride, Al-nitride or Al-sulphide. This paper deals with

    detailed systematic thermodynamic analysis of the process through carbosulphidation route,

    where alumina is first reduced to Al2S3 in the presence of reductant and sulphur source.

    Various ratios of carbon to sulphur have been considered in this modelling study. In the

    second stage, Aluminium is extracted from the Al2S3 through thermal decomposition,

    disproportionation or electrolysis. The different thermodynamic and energy analysis of the

    second stage is also discussed in this paper.

UOW Authors


  •   Huda, Nazmul (external author)
  •   Rhamdhani, Muhammad A. (external author)
  •   Dewan, Mohammad A. (external author)
  •   Brooks, Geoffrey A. (external author)
  •   Monaghan, Brian
  •   Prentice, Leon (external author)

Publication Date


  • 2012

Citation


  • Huda, N., Rhamdhani, M. A., Dewan, M. A., Brooks, G. A., Monaghan, B. J. & Prentice, L. (2012). Thermodynamic assessment of aluminium production through carbosulphidation route. Chemeca 2012: Australasian Chemical Engineering Conference (pp. 1-14). Barton, A.C.T.: Engineers Australia.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1224&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/219

Start Page


  • 1

End Page


  • 14

Abstract


  • Indirect carbothermal reduction of alumina for the production of aluminium has been claimed

    to be better compared to the existing Hall-Heroult process in-terms of energy usage,

    generation of perfluorocarbons and overall greenhouse gas emission. In the process, alumina is

    reduced to an intermediate compound which is then further reduced to Al. It has been shown

    from the previous thermodynamic study by the authors that high conversion of alumina can be

    obtained if it is reduced to Al-chloride, Al-nitride or Al-sulphide. This paper deals with

    detailed systematic thermodynamic analysis of the process through carbosulphidation route,

    where alumina is first reduced to Al2S3 in the presence of reductant and sulphur source.

    Various ratios of carbon to sulphur have been considered in this modelling study. In the

    second stage, Aluminium is extracted from the Al2S3 through thermal decomposition,

    disproportionation or electrolysis. The different thermodynamic and energy analysis of the

    second stage is also discussed in this paper.

UOW Authors


  •   Huda, Nazmul (external author)
  •   Rhamdhani, Muhammad A. (external author)
  •   Dewan, Mohammad A. (external author)
  •   Brooks, Geoffrey A. (external author)
  •   Monaghan, Brian
  •   Prentice, Leon (external author)

Publication Date


  • 2012

Citation


  • Huda, N., Rhamdhani, M. A., Dewan, M. A., Brooks, G. A., Monaghan, B. J. & Prentice, L. (2012). Thermodynamic assessment of aluminium production through carbosulphidation route. Chemeca 2012: Australasian Chemical Engineering Conference (pp. 1-14). Barton, A.C.T.: Engineers Australia.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1224&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/219

Start Page


  • 1

End Page


  • 14