scholarly journals Comparing Anodic Bubble Behavior of Anodes from Anisotropic and Isotropic Cokes in Laboratory Scale Aluminum Electrolysis Cells

2019 ◽  
Vol 166 (13) ◽  
pp. E438-E452
Author(s):  
Camilla Sommerseth ◽  
Rebecca J. Thorne ◽  
Arne Petter Ratvik ◽  
Stein Rørvik ◽  
Hogne Linga ◽  
...  
Keyword(s):  
Aluminum Electrolysis ◽  
Laboratory Scale ◽  
Bubble Behavior ◽  
Electrolysis Cells

scholarly journals Anodic Bubble Behavior in a Laboratory Scale Transparent Electrolytic Cell for Aluminum Electrolysis

Metals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 806 ◽  
Author(s):  
Yipeng Huang ◽  
Zhaowen Wang ◽  
Youjian Yang ◽  
Bingliang Gao ◽  
Zhongning Shi ◽  
...  
Keyword(s):  
Bubble Dynamics ◽  
Aluminum Electrolysis ◽  
Electrolytic Cell ◽  
Laboratory Scale ◽  
Carbon Anode ◽  
Electrolysis Cell ◽  
Bubble Behavior ◽  
Electrolysis Process ◽  
Graphite Anodes ◽  
Carbon Anodes

In the Hall-Héroult process for extracting aluminum, the evolution and dynamics of anodic bubbles have a significant influence on the efficiency of the overall electrolysis process. In this study, the behavior of the bubbles beneath the carbon anode in cryolite-alumina molten salt was studied for the first time using a laboratory-scale transparent electrolysis cell to view the anode from the bottom. The bubble dynamics and the relevant characteristic parameters of bubbles were obtained using video cameras and image processing. It was found that the bubbles were observed to preferentially generate at several areas on the underside of the anode and the morphologies of coalesced bubbles show excellent similarity. Moreover, the behavior of gas on carbon and graphite anodes was significantly different, where the carbon anode favored the forming of larger bubbles. These observations confirmed different types of carbon anodes cause different bubble behavior. These findings are expected to be useful in optimizing the aluminum electrolysis process on an industrial scale.

Improved heat transfer modeling of the top of aluminum electrolysis cells

2019 ◽  
Vol 132 ◽  
pp. 1262-1276 ◽  
Author(s):  
François Allard ◽  
Martin Désilets ◽  
Marc LeBreux ◽  
Alexandre Blais
Keyword(s):  
Heat Transfer ◽  
Aluminum Electrolysis ◽  
Heat Transfer Modeling ◽  
Electrolysis Cells

The Impact of the Cavity on the Top Heat Losses in Aluminum Electrolysis Cells

2016 ◽  
pp. 289-294
Author(s):  
François Allard ◽  
Martin Désilets ◽  
Marc LeBreux ◽  
Alexandre Blais
Keyword(s):  
Aluminum Electrolysis ◽  
Heat Losses ◽  
Electrolysis Cells ◽  
The Impact

Large Gas Bubbles under the Anodes of Aluminum Electrolysis Cells

2011 ◽  
pp. 581-586 ◽  
Author(s):  
Alexandre Caboussat ◽  
László Kiss ◽  
Jacques Rappaz ◽  
Klára Vékony ◽  
Alexandre Perron ◽  
...  
Keyword(s):  
Gas Bubbles ◽  
Aluminum Electrolysis ◽  
Electrolysis Cells

CFD Simulation of Effect of Interphase Forces and Turbulence Models on Gas–Liquid Two-Phase Flows in Non-Industrial Aluminum Electrolysis Cells

JOM ◽  
2017 ◽  
Vol 69 (9) ◽  
pp. 1589-1599 ◽  
Author(s):  
Shuiqing Zhan ◽  
Jianhong Yang ◽  
Zhentao Wang ◽  
Ruijie Zhao ◽  
Jun Zheng ◽  
...  
Keyword(s):  
Cfd Simulation ◽  
Turbulence Models ◽  
Aluminum Electrolysis ◽  
Two Phase Flows ◽  
Two Phase ◽  
Electrolysis Cells ◽  
Industrial Aluminum

On the Prediction of the Crust Evolution inside Aluminum Electrolysis Cells

2014 ◽  
pp. 653-660 ◽  
Author(s):  
Marc LeBreux ◽  
Martin Désilets ◽  
Alexandre Blais ◽  
Marcel Lacroix
Keyword(s):  
Aluminum Electrolysis ◽  
Electrolysis Cells
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