Light Metals 2013 pp 1085-1088 | Cite as

Quality of Calcined Petroleum Coke and Its Influence on Aluminium Smelting

  • José Subero
Part of the The Minerals, Metals & Materials Series book series (MMMS)


This paper reports a study on the structure and porosity of calcined petroleum coke (CPC), the impact on mechanical properties of the corresponding baked anodes; and their behaviour in electrolytic reduction cells, especially the susceptibility towards thermal shock. This work was supported by characterization techniques used by CVG Venalum and PDVSA (Venezuela), such as mercury porosimetry, physisorption, and image analysis by optical microscopy (OM). The results indicated that good CPC quality is reflected by good mechanical anode properties as long as the anode manufacturing process is stable. The anode properties are related to the OTI (optical texture index). It is therefore possible to predict the anode behaviour from the CPC structure and porosity, take appropriate action, and decrease the net carbon consumption (NCC).


petroleum coke thermal shock anode quality OTI (Optical Texture Index) 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    G. Leofanti et al., “Surface area and pore texture of catalysts”, Catalysis Today, May 28, 1998, 41, 207–219.CrossRefGoogle Scholar
  2. 2.
    A. Oya, Z. Qian, H. Marsh., “Structural study of cokes using optical microscopy and X-ray diffraction”, Fuel, 1983, 62, 274–278.CrossRefGoogle Scholar
  3. 3.
    M. Hole, A. Øye, T. Foosnæs., “Relationship Between Thermal Expansion and Optical Texture of Petrol Coke”, Light Metals, 1991, 575–579.Google Scholar
  4. 4.
    Fischer W. K., Perruchoud R. C., “Test Methods for the Determination of Prebaked Anode Properties”, In: Anodes for the Aluminium Industry, R&D Carbon Ltd, Sierre, Switzerland, 1995; 281–292.Google Scholar
  5. 5.
    Meier M W. Cracking Behavior of Anodes. R&D Carbon: Sierre, Switzerland, 1996.Google Scholar
  6. 6.
    Gregg S J, Sing K S W. Adsorption, surface area and porosity. Academic Press: London, UK, 1982.Google Scholar

Copyright information

© The Minerals, Metals & Materials Society 2016

Authors and Affiliations

  • José Subero
    • 1
    • 2
  1. 1.CVG VENALUMZona Industrial MatanzasBolívarVenezuela
  2. 2.UNEXPO (Universidad Nacional Experimental Politécnica Antonio Jose de Sucre)BolívarVenezuela

Personalised recommendations