Preliminary Testing and Simulations of Pot Integrated Abart (PIA) at Alcoa Mosjøen

AsPot Integrated Abart (PIA) most electrolysisElectrolysis pots in an aluminiumAluminium potline will have different rates of fluoride lossesFluoride loss, while the secondary aluminaAlumina from the GTCGas Treatment Centre (GTC) will contain an average fluorine content an imbalance will occur over time leading to instability and require corrections by additions of fluoride or removal of excess bath. The development of the Pot Integrated Abart (PIA) technology from REEL will address this issue by having dedicated dry scrubbers for each pot. A research PIAPot Integrated Abart (PIA) unit has currently been built and testing was started at Alcoa Mosjøen in Q4 2022. The results and findings from the early stages of operationsOperation will be discussed, as well as direct impacts on measurable cellCell parameters. Further, the results will be used as input for predictions on how cell stabilityCell stability and operationsOperation in the potroom is affected by the introduction of the PIAPot Integrated Abart (PIA).