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Meeting 2012 TMS Annual Meeting & Exhibition
Symposium Aluminum Reduction Technology
Presentation Title Twin Air Compressor for Energy Saving and Backup Capability
Author(s) Anne-Gaëlle Hequet, Serge Despinasse
On-Site Speaker (Planned) Serge Despinasse
Abstract Scope Since the first Pot Tending Machine commissioned by ECL™ 50 years ago, all the new options, tools and technical solutions have been conceived and designed only to meet with smelters’ challenges: reduce energy consumption and consequently allow significant cost savings and ensure safe and secure operations. In close collaboration with a world-class air compressor designer and manufacturer, ECL™ has then developed and equipped its Pot Tending Machine with a new standard of air compressor: the twin air compressor. Instead of just one big energy-intensive compressor, two smaller and lighter compressors are in most cases used separately (anode changes), except for tapping operation. By running them alternately at only 90% of their full capacity, there are definite energy savings with the additional benefit of a longer operational life for the compressor. Furthermore, the size and weigh of this new standard greatly ease maintenance operations.
Proceedings Inclusion? Definite: A combination print-CD volume


A Method for Comparing the HF Formation Potential of Aluminas with Different Water Contents
A Techno-Economic Optimization Model For Aluminum Electrolysis Production
A Thermodynamic Approach to the Corrosion of the Cathode Refractory Lining in Aluminium Electrolysis Cell: Modelling of the Al2O3-Na2O-SiO2-AlF3-NaF-SiF4 System
Anodic Bubble Behavior in Hall-Héroult Cells
AP40 : The Latest of the AP Technology™ Solutions
Busbar Displacement Study of Aluminum Reduction Cell
Challenges in Using Discrete Logistics as a Management Decision Tool for Aluminium Production
Characteristics of In Situ Alumina PID Ore Feed Control
Commissioning of Emirates Aluminium Smelter Potlines
Computer Algorithm to Predict Anode Effect Events
Concentration Gradients of Individual Anion Species in the Cathode Boundary Layer of Aluminium Reduction Cells
Controlling the Variability of Pots KPVs : The Variability Matrix
Cryoscopic Data for Hall-Héroult Bath Containing Magnesium Fluoride, Calcium Fluoride, Potassium Cryolite, and Sodium Chloride
Current Distribution and Lorentz Field Modelling Using Cathode Designs: A Parametric Approach
Current Efficiency Predictive Model and Its Calibration and Validation
Depolarized Gas Anodes for Electrowinning of Aluminium from Cryolite-Alumina Melts in a Laboratory Cell
Depth Analysis and Potentiality Exploitation on Energy-Saving and Consumption-Reduction of Aluminum Reduction Pot
Development and Application of SAMI’s Low Voltage Energy-Saving Technology
Dimensional Analysis in Cold Water Model Experiments of New Cathode Structure Aluminum Cell
DX+, An Optimized Version of DX Technology
Effect of Current Density and Phosphorus Impurities on the Current Efficiency for Aluminum Deposition in Cryolite-Alumina Melts in a Laboratory Cell
Effect of KF Additions in NA3ALF6-AL2O3 Electrolytes on Expansion of Cathode Blocks
Effective Insulation Control Monitoring System: The CANDI™ Solution for a Safer Production
Electrochemical Behaviour of Carbon Anodes in Na3AlF6-K3AlF6-Based Low-Melting Electrolytes for Aluminium Electrolysis
Electrolytic Cell Gas Cooling Upstream of Treatment Center
Electromagnetic and MHD Study to Improve Cell Performance of an End-to-End 86 kA Potline
Experiences with Alstom’s New Alfeed System at Emal
Experimental and Theoretical Study on the Fluidization of Alumina Fluoride Used in the Aluminum Smelter Processes
Experimental Studies of the Impact of Anode Pre-Heating
Flow Field Comparison between Traditional Cell and New Structure Cell by Chaclo by CFD Method
GHG Measurement and Inventory for Aluminum Production
HEX Retrofit Enables Smelter Capacity Expansion
HF Emission Reduction from Anode Butts Using Covered Trays
Impact of Amperage Creep on Potroom Busbars: Thermal-Mechanical Aspects
Impacts of Anode Set on the Energy Re-distribution of PB Aluminum Smelting Cells
Improved Energy Management during Anode Setting Activity
Impurity Elements in Raw Gas Ultra-Fines from Aluminum Electrolysis Cells
Influence of the Sulphur Content in the Anode Carbon in Aluminium Electrolysis - a Laboratory Study
Integrated Desalination and Primary Aluminium Production
Investigation of the Mechanism of Mass Transport between the Anode-Bath Interface and the Active Bubble Generating Sites in the Hall-Héroult Cells
Jet Induced Boosted Suction System for Roof-Vent Emission Control: New Developments and Perspectives
Latest Results from PFC Investigation in China
Low Cost Video Emissions Monitoring Technique for Aluminum Smelting Applications
Low Energy Cell Development on AP TechnologyTM
Maximize Efficiency and Safety of Smelters through Advanced Multipurpose Simulator Solution
Micro-Raman Spectra Research on NaF-AlF3-NaCl Melts
Modeling Cathode Cooling Due to Power Interruption
Modeling of Interface Wave of Electrolyte/Aluminum Melt in Aluminum Reduction Cell with Novel Cathode Structure
Modeling the Mass and Energy Balance of Different Aluminium Smelting Cell Technologies
Multivariate Statistical Investigation of Carbon Consumption for HSS Reduction Cell
Numerical Investigation of Bubble Dynamics in Aluminium Electrolytic Cells
Numerical Simulation on Coupled Multi-field of the Perforated Anode in Aluminium Reduction Cells under Low Carbon Operation
Operating Parameters of Aluminum Electrolysis in a KF-AlF3 Based Electrolyte
Optimization and CFD Simulation in the Ventilation of AP60 Reduction Cell Buildings
Potentiometric Fluoride Analysis with Improved Analytical Performance
Potline Open Circuit Protection
Prebake Potline Restart after Power Supply Interruption
Preparating Aluminium-Scandium Inter-alloys during Reduction Process in KF-AlF3-Sc2O3 Melts
Reduction of the Operating Temperature of Aluminium Electrolysis: Low-Temperature Electrolyte
Research and Application of Energy Saving Technology for Aluminum Reduction in China
Review on the Energy Saving Technologies Applied in Chinese Aluminum Reduction Industry
Specific Molecular Features of Potassium-Containing Cryolite Melts
Studies of Perfluorocarbon Formation on Anodes in Cryolite Melts
Study on the Influences of Potline Status on the Magnetic Fields of Aluminum Reduction Cells
The Restart of Two Idled Pot Lines at Ormet Primary Aluminum
The Successful Implementation of DUBAL DX Technology at EMAL
The Transition Strategy at Alouette towards Higher Productivity with a Lower Energy Consumption
The Use of Vortex Method in the Analysis of Multiphase Flow in Aluminum Reduction Cells
Towards On-Line Monitoring of Alumina Properties at a Pot Level
Twin Air Compressor for Energy Saving and Backup Capability
Uniform Cathode Current Collection / Distribution Effect on Cell Stability (Nine Months of Continuous Treatment of a Sick Cell)
Update on the Development of D18 Cell Technology at Dubal
Vertical Stud Søderberg Technology Development by UC RUSAL in 2004 -2010
Visualising the Sources of Potroom Dust in Aluminium Smelters
Wireless and Non-Contacting Measurement of Individual Anode Currents in Hall-Héroult Pots; Experience and Benefits

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