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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Aluminum Reduction Technology
Presentation Title Cradle-to-Gate Carbon Footprint Assessment of Graphite Cathode for Aluminium Electrolysis Pots
Author(s) Tristan Carrere, Bénédicte Allard, Till Reek
On-Site Speaker (Planned) Tristan Carrere
Abstract Scope Even though demand of cathode blocks constitutes only ~5 kg/tAl produced, the production of carbon and especially graphite cathodes is energy intensive. It is therefore essential to evaluate the carbon footprint of such products. In this paper, we focus on the complete Life Cycle Assessment of graphitized cathode blocks from “cradle-to-gate” based on our French operation. The main production steps accounting for the majority of greenhouse gas emissions are coke calcination, block baking and graphitization treatment. Major sources of greenhouse gases are energy consumption and volatile combustion during heat treatment. Actual emission values as well as process optimizations and electricity grid mix influences will be discussed in the objective of achieving a greener Aluminum production.
Proceedings Inclusion? Planned: Light Metals
Keywords Sustainability, Environmental Effects, High-Temperature Materials

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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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