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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Aluminum Reduction Technology
Presentation Title New Phase in Upgrade of Søderberg Technology at RUSAL’s Smelters
Author(s) Viktor Y. Buzunov, Viktor Mann, Vitaliy Pingin, Aleksey Zherdev, Maksim Kazantsev, Andrey Pinaev, Yuriy Bogdanov
On-Site Speaker (Planned) Viktor Y. Buzunov
Abstract Scope RUSAL is in phase 2 of upgrading its Søderberg technology. After a successful upgrade in the Krasnoyarsk smelter, new designs (EcoSøderberg) are now being deployed across the Bratsk, Irkutsk, Novokuznetsk and Volgograd smelters. The EcoSøderberg includes: energy-efficient cathode; point feeding; innovative gas removal system (without burners) where CO-to-CO2 after-burning occurs under the skirt; anode paste/SHP based on eco-pitch (low PAHs); continuous digital control over the environmental performance of cells, including pot-without-seal warnings; new potroom vehicles with automated control; shorter pot tending operations; and two-stage exhaust gas treatment. The above helped to reduce benzo(a)pyrene emissions by more than 50%. Other emissions reduced to the average of pre-baked technologies, or even lower. Low (compared to conversion to PB) upgrade costs and considerable improvements in cell performance should also be noted. RUSAL continues its efforts to minimize/’reduce to zero’ PAH and other emissions and develop a fully automatic system for environmental control.
Proceedings Inclusion? Planned: Light Metals


AP12 Low Energy Technology at ALRO Smelter
Carbon Dust - Its Short-Term Influence on Potroom Operations
Characterisation of Powders-precondition for Plant Engineering
Coupled SPH-DEM to Simulate the Injection of a Powder into a Liquid with Heat Transfer and Phase Change
Dissolution Characteristics and Concentration Measurements of Alumina in Cryolite Melts
Electrochemical Reduction and Dissolution of Aluminium in a Thin-layer Refinery Process
Experience with Lengthy Pot Hibernation at Alcoa Baie-Comeau
Gas Treatment in the GE Pot Integrated ABART Modules (PIA)
Hydro’s New Karmøy Technology Pilot: Start-up and Early Operation
Improvement to Alpsys Instability and Alumina Feeding Control
Individual Anode Current Monitoring during Aluminum Reduction Cell Power Reduction
Influence of Additives on Alumina Dissolution in Superheated Cryolite Melts
Instant Monitoring of Aluminum Chemistry in Cells Using a Portable Liquid Metal Analyzer
Introductory Comments: Aluminum Reduction Technology
Latest Developments in GTC Design to Reduce Fluoride Emissions
Low and High Voltage PFC Slope Coefficient Monitoring during Pot Start-up
Mass Transport by Waves: Bath-metal Interface Deformation, Rafts Collision and Physical Model
Modeling Anode Current Pickup After Setting
New Phase in Upgrade of Søderberg Technology at RUSAL’s Smelters
On Gaseous Emissions during Alumina Feeding
On the Feasibility of Using Low-melting Bath to Accommodate Inert Anodes in Aluminium Electrolysis Cells
Process and Environmental Aspects of Applying Unshaped Carbon Materials for Cell Lining Purposes
Superconductor Busbars – High Benefits for Aluminium Plants

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