Anode Signal Analysis — The Next Generation in Reduction Cell Control

  • Jeffrey Keniry
  • Eugene Shaidulin


Reduction cells have achieved excellent control capability over the past 20 years by improved acquisition and treatment of the cell resistance signal, which provides the basis for regulation of alumina feeding, thermal balance and cell stability. As cells become larger in size however, there is an increasing need for control sensors that can recognize and react to spatial variation in the cell both in terms of anode performance and alumina feed control. Monitoring of individual anode current signals can provide the ‘next generation’ control capability that will be necessary to ensure that very large cells can deliver the same process efficiencies as their smaller predecessors. Coincidently, anode signals can now be acquired, stored and processed with far greater convenience and lower cost than was possible in the past, making an enhanced control capability within practical reach.


Anode current signals reduction cell control 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Barnett, W.M. “Measuring Current Distribution in an Alumina Reduction Cell”, 1980, US Patent P.4786379.Google Scholar
  2. 2.
    Huni, J.P.R. “A-275 — Individual Anode Control”, Light Metals 1986 pp 199–203Google Scholar
  3. 3.
    Rye K.A., Konigsson M. and Solberg I., “Current Redistribution Among Individual Anodes in a Hall-Heroult Prebake Cell at Low Alumina Concentrations”, Light Metals 1998 pp 241–246.Google Scholar
  4. 4.
    Keniry, J.T. et al, “Digital Processing Of Anode Current Signals: An Opportunity For Improved Cell Diagnosis And Control”, Light Metals 2001Google Scholar
  5. 5.
    Panaitescu A. et al, “Experimental Studies on Anode Effects by the Visualisation of the Molten Aluminium Surface Oscillations”, Light Metals 2001 pp 343–348.Google Scholar
  6. 6.
    Shaidulin E.R et al, “Study of the Dynamics of Current Distribution over Anodes in Prebake Reduction Cell”, 11th International Conference Proceedings, Aluminium of Siberia 2005. Ed P Polyakov.Google Scholar
  7. 7.
    Shaidulin E., Gusev A.O. and Vabischevich P.N., “Method of Controlling Aluminium Reduction Cell With Prebake Anodes”. US Patent Application 2007/0095672 Al, 3rd May 2007Google Scholar
  8. 8.
    Solheim A. and Moxnes B.P., “Anode Current Distribution in Aluminium Electrolysis Cells”, 13th International Conference Proceedings, Aluminium of Siberia 2007. Ed P Polyakov.Google Scholar

Copyright information

© The Minerals, Metals & Materials Society 2016

Authors and Affiliations

  • Jeffrey Keniry
    • 1
  • Eugene Shaidulin
    • 2
  1. 1.Alumination Consulting Pty LtdMt MacedonAustralia
  2. 2.Russian Engineering CompanyEngineering & Technology CentreKrasnoyarskRussia

Personalised recommendations