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BINDER MATRIX REACTIVITY UNDER CO 2 GASIFICATION: A POSSIBLE EXPLANATION OF THE ANODE DISINTEGRATION IN THE ELETROLYSIS BATH IN HALL-HEROULT PROCESS

F. Chevarin, M. Kavand

2016enbinderCO2reactivityanodealuminumaluminum productionHall-Héroult processcarbon anodesCO2 gasificationbinder matrixdusting phenomenon

Abstract

Language:

Carbon anodes, utilized in the Hall-Heroult process for aluminum production, undergo consumption due to electrochemical reactions, coupled with parasitic reactions involving air and CO2. This study focuses on examining the reactivity of the binder matrix within the anode, constructed from petroleum coke and coal tar pitch, at a high temperature of 960°C. Through experiments conducted under pure CO2 conditions and varying concentration gradients, the apparent reaction rates of the binder matrix, alongside other anode constituents, were measured. The findings provide insights into the role of the binder matrix in the anode's overall reactivity and its contribution to anode consumption, elucidating the mechanisms leading to disintegration and dusting phenomena. These results contribute significantly to the understanding of carbon anode behavior in aluminum electrolysis, suggesting pathways for improving the efficiency and lifespan of the anodes used in this vital industrial process.

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Cite This Work

@article{0bd94beb-6e51-465a-b1d9-b96ace97997f,
  title={BINDER MATRIX REACTIVITY UNDER CO
2 GASIFICATION: A POSSIBLE EXPLANATION 
OF THE ANODE DISINTEGRATION IN THE ELETROLYSIS BATH 
IN HALL-HEROULT PROCESS},
  author={F. Chevarin and M. Kavand},
  year={2016},
  language={en}
}
TY  - JOUR
TI  - BINDER MATRIX REACTIVITY UNDER CO
2 GASIFICATION: A POSSIBLE EXPLANATION 
OF THE ANODE DISINTEGRATION IN THE ELETROLYSIS BATH 
IN HALL-HEROULT PROCESS
AU  - F. Chevarin
AU  - M. Kavand
PY  - 2016
LA  - en
ER  -

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