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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Aluminum Reduction Technology
Presentation Title Restart of Albras’ Potline 2 – Improving Performance and Changing Paradigms
Author(s) Bruno Vasconcelos, Ana Renata Monteiro, Ana Carolina Guedes, Michel Pena, João Vilckas, Johnson Machado, Flávio Silva, Márcio Souza
On-Site Speaker (Planned) Michel Pena
Abstract Scope In February 2022, Albras lost Potline 2 due to a power outage, shutting down 223 pots. After three months, with the support of Hydro’s technical team, 75% of the pots are in operation and production levels are on the rise. The early failure rate is below 5%. Only 6 tap outs (4 in bath phase) and 2 cut outs due to iron contamination. Daily average number of pots above 1000°C is 5.5. Average acidity has been below 4% in the first 5 days. Originally expected to end in early November, the work is now forecast to finish four months in advance, in July, and there have been no safety incidents. The aim of this work is to describe in detail the pathway leading to what has become the most successful restart in the history of Albras in terms of pace, success rate, process consistency, operational stability, and human capital development.
Proceedings Inclusion? Planned: Light Metals
Keywords Aluminum, Other,


Achieving Low Pot Failure Rate at Aditya Aluminium
Application of Cell Retrofit in GP320 Aluminum Reduction Cell Line
CFD Modelling of Solidification and Melting of Bath during Raft Formation
Dissimilar Results in Restarting Two Different Potlines
Evaluation of Methodologies for Assessment of SO3 Concentration in Industrial Off-gas
Experimental Investigation of the Alumina Cloud During Alumina Injections in Low And High Temperature Conditions
Fundamental Mass Transfer Correlations Based on Experimental and Literature Data
Fundamentals of Pot Ventilation in Aluminum Smelters
Mathematical Modelling of the Desulfurization of Electrolysis Cell Gases in a Low Temperature Reactor
Numerical Investigation of the Thermal, Electrical and Mechanical Behaviour of Aluminum Reduction Cell during Preheating Phase
Potential of Production Al-Si Green Alloys in AP18 Aluminium Reduction Cell
Preheat, Start-up and Early Operation of DX+ Ultra Pots at 500 kA
Recent Improvements to a Mathematical Model Replicating the Wave and Stream at the Bath-metal Interface
Restart of Albras’ Potline 2 – Improving Performance and Changing Paradigms
Simplified 3D MHD Model for Quick Evaluation of Aluminium Electrolysis Cell Design
The Expanded Industrial Pilot of SAMI’s NCCT+ Technology
The SY500 Potline Technology Development

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