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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Electrode Technology for Aluminum Production
Presentation Title Charcoal and Use of Green Binder for Use in Carbon Anodes in the Aluminium Industry
Author(s) Camilla Sommerseth, Ove Darell, Barte Øye, Anne Støre, Stein Rørvik
On-Site Speaker (Planned) Camilla Sommerseth
Abstract Scope Carbon anodes for aluminium production are made of calcined petroleum coke (CPC) and coal tar pitch (CTP). The CO2 produced upon anode consumption contributes to a substantial amount of the carbon footprint. Charcoal from wood is suggested to partly replace coke in anodes but has some highly undesirable properties: low electrical resistivity, high porosity, and high ash content. Siberian larch and spruce charcoal were produced by heat treatment to 800°C, 1200°C and 1400°C and acid-washed with H2SO4, resulting in decreasing impurity content and porosity. Pilot anodes were made from CTP, CPC and charcoal, some with CTP replaced by a green binder. A reference anode was produced with CTP and CPC. Electrochemical consumption of anodes containing green binder, larch and spruce were all higher compared to the reference anode. CO2 reactivity was higher for anodes containing spruce and green binder, but comparable to the reference for anodes containing larch.
Proceedings Inclusion? Planned: Light Metals


10 Years of Anode Research and Development: Alcoa & Université Laval Experience
Additive Selection for Coal Tar Pitch Modification in Aluminum Industry
An EXAFS and XANES Study of V, Ni, and Fe Speciation in Cokes for Anodes Used in Aluminum Production
Anhydrous Carbon Pellets – An Engineered CPC Raw Material
Carbon Anode Raw Materials – Where is the Cutting Edge?
Charcoal and Use of Green Binder for Use in Carbon Anodes in the Aluminium Industry
Development of a Soft Sensor for Detecting Overpitched Green Anodes
Diffusion Measurements of CO2 within Carbon Anodes for Aluminium Smelting
Energy Saving in Hall-Héroult Cell by Optimization of Anode Assembly Design
Environmental Benefits of Using Spent Pot Lining (SPL) in Cement Production
Higher Baking and Production Levels in Anode Baking Furnaces and Associated Challenges
How to Improve the Environmental Efficiency of the Hall-Heroult Process While Producing and Using Carbon Anodes?
Influence of Particle Shape and Porosity on the Bulk Density of Anode Grade Petroleum Coke
Major Reconstruction of Central Casing of Open Top Baking Furnace with a View to Increase Its Lifespan and Reduce the Total Costs Comparing to Full Reconstruction
Modelling of Gas Injection on Anode Baking Furnace and Application to Operations
Purification of Graphite by Thermal Vacuum Treatment of Spent Potlining
Ready-to-Use Cathodes for the Hall-Héroult Process
Redesigning of Current Carrying Conductor - The Energy Reduction Initiative in Low Amperage Hall-Héroult Cell
Solids Flow Considerations and their Impact in Smelter Carbon Plant Operations and Product Quality
Sustainable Spent Pot Lining Management Guidance
Testing of SERMA Technology on Industrial Anodes for Quality Control in Aluminum Production
The Development of Anode Shape, Size and Assembly Designs - Past Present and Future Needs
The LCL&L Process: A Sustainable Solution for the Treatment and Recycling of Spent Potlining
Trends in Carbon Anode Production

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