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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Aluminum Reduction Technology
Presentation Title Thermal Analysis of Operational Events Affecting Electrolysis Cells and Their Local Alumina Dissolution Conditions
Author(s) Ali Kodfard, Lukas Dion, Thomas Roger, Sébastien Guérard, Jean-François Bilodeau
On-Site Speaker (Planned) Lukas Dion
Abstract Scope Recent cell designs tend to use innovative sensors coupled with control systems for timely process decisions that provide a common usage of digital twins and improved competitiveness. As the cells are pushed closer to their operational limits, the preservation of the energy balance is a dominant limitation in the aluminum industry. Consequently, the proper use of novel measurement procedures and sensors is a realistic path toward optimal conditions. In order to understand the key drivers, and to pinpoint possible solutions, this article investigates the heat and energy balance of the cell with its main focus on the sustainability of proper alumina dissolution conditions. The paper highlights the difficulties associated with different process operations resulting in heat and thermal imbalance. Finally, solutions that can provide smelters with efficient ways to mitigate these disruptions are presented and discussed that improve energy efficiency and reduce greenhouse gas emissions.
Proceedings Inclusion? Planned: Light Metals


A Method for Anode Effect Prediction in Aluminum Electrolysis Cells Based on Multi-scale Time Series Modeling
A Method of Cell Heat Balance Control to Enable Variable Power Usage by Aluminium Smelters
A Review of Challenges and Solutions in Ledge Control and Measurement in Aluminium Electrolysis Cell
Accurate Measurement of Anode Current in Aluminum Electrolysis: From Ideal to Reality
Aluminium Carbide and Carbon Dust in Aluminium Electrolysis Cells. A Conceptual Model for Loss in Current Efficiency
Amperage Increase Program and Enablers in EGA Al Taweelah DX Technology Potlines
Application of SAMI Energy-saving and Current-intensifying Technology in a 330kA Potline
Cathode Inspection and Repair Procedure Improvements in ALBRAS
Cell Startup and Early Operational Improvements in ALBRAS
Combining New and Old Cathode Block Assembly to Increase the Lifetime of Pot at INALUM
Computational Simulation of Electromagnetic Fields in an Aluminum Electrolysis Cell
Construction and Application of Digital Twin in Aluminum Electrolysis
Correlation Between Corrosion Rate and Electrochemical Parameters of Anode Process on a Metallic Electrode in Molten Oxyfluorides
Cradle-to-Gate Carbon Footprint Assessment of Graphite Cathode for Aluminium Electrolysis Pots
Design and Trial of Electrical Collector Plate in Cathode Assemblies
Determination of the Air-gap Distribution at the Cast Iron to Carbon Cathode Interface Using a 3D Scanning Approach
Dimensional Analysis Applied to the Dissolution and Disintegration of Alumina Rafts: The Riddle of Dissolving Alumina Rafts Solved
Direct Production of Al-Mn Alloys during the Electrodeposition of Aluminium in a Laboratory Cell
Electrowinning of Al-Sc Master Alloys in the LiF-AlF3-Sc2O3 Melts
Estimation of the Spatial Alumina Concentration of an Aluminium Smelting Cell Using a Huber Function-based Kalman Filter
Factors Affecting the Performance of Oxygen Evolving Ni-Fe-Cu Anodes in Low Temperature Molten Fluoride Electrolyte for Aluminium Electrowinning
Fundamental Loss of Current Efficiency During Aluminium Electrolysis and its Correlation With Sodium Content Dissolved in the Aluminium
Influence of Low Temperature on the Surface and Morphological Properties of Hydrated Lime in SO2 Desulfurization Reaction
Limits for the Current Efficiency in Hall-Héroult Cells
Low Carbon Emission Technology Upgrading Industrial Pilot of 350kA Pots
Metal Tapping Yoke and Platform Modification for Improved Locking and Unlocking
MHD Stability of Aluminium Cells - Cathode Design Effects
Modeling and Design of the Cathode Block Assembly Using Different Types of Models
New 32h Tapping Cycle Implementation at ALBRAS
Novel Developments for Inert Anodes and Wettable Cathodes in Aluminium Electrolysis
Numerical Modeling of Anode Changes and Their Effect on Current Distribution and Magnetohydrodynamic Behavior of an Aluminium Cell
Online Monitoring of Metal Oxides in Molten Fluoride Electrolytes
Pot Failure Prediction at Emirates Global Aluminum (EGA)
Predicting Electrolyte and Liquidus Temperatures of Aluminium Smelting Cells for Power Modulation Using Dynamic Model
Preliminary Testing and Simulations of Pot Integrated Abart (PIA) at Alcoa Mosjøen
Re-usage of Big Butt
Regeneration of Aluminum Fluoride from Pure Bath
Restart of AP30 Cells at Boyne Smelters
SMARTCrane, a Fives' Digital Solution for Aluminium Production Optimization
Specific Energy Reduction Through Design Modifications at Aditya Aluminium Smelter
Study of the Degradation of Ordinary Refractory Bricks in an Aluminium Reduction Cell
Sustainability of Different Aluminium Production Technologies
Thermal Analysis of Operational Events Affecting Electrolysis Cells and Their Local Alumina Dissolution Conditions
Thermoelectrical Analysis of Lying-bed Patterns during Preheating Phase

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