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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Electrode Technology
Presentation Title Porous Carbon Anodes for the Supply of Methane during Electrowinning of Aluminium
Author(s) Babak Khalaghi, Geir Martin Haarberg
On-Site Speaker (Planned) Babak Khalaghi
Abstract Scope One of the major downsides of the current aluminium production process is the high amount of CO2 emission. One alternative is to replace the consumable carbon anodes with inert anodes so that oxygen evolves instead of CO2. However, so far a sufficiently inert anode has not been found. Another option is to utilize natural gas through porous anodes. This will decrease CO2 emission remarkably. The porous anode could be made of carbon or it can be inert. However, the as-mentioned problem still exists regarding porous inert anodes. Therefore, at the moment porous carbon anodes seem to be the best practical option. In this study, porous anodes made of different grades of graphite were used for electrolysis experiments. Also, off-gas analysis was performed to get an insight of the ongoing reactions. Our results show that for some types of graphite anodes, methane participates effectively in the anodic reaction.
Proceedings Inclusion? Planned: Light Metals Volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Anode Baking Furnace Fluewall Design Evolution: A Return of Experience of Latest Baffleless Technology Implementation
Cathode Wear in Electrowinning of Aluminum Investigated by a Laboratory Test Cell
Characterization of Carbon Anode Materials by Image Analysis
Copper Bars for the Hall-Héroult Process
Effect of Cathode Collector Copper Inserts on the Hall-Héroult Cell MHD Stability
Effect of Heating Rate during Baking on the Properties of Carbon Anodes Used in Aluminum Industry
Electrochemical Reactivity and Wetting Properties of Anodes Made from Anisotropic and Isotropic Cokes
Empirical Modeling of the Baking Furnace to Predict Baked Anode Properties
In Situ Investigation of the Behavior of Anode Assemblies
Interfacial Boundary between Carbon Anodes and Molten Salt Electrolyte
Journey towards World-Class Operational Effectiveness at DUBAL (EGA Jebel Ali Operations) Paste Plant
Low Resistance Anode Assembly Using Steel Stubhole Conductors across the Cast Iron to Carbon Interface
Measurement of the Electric Current Distribution in an Anode
MIREA: An On-line Quality Control Equipment Integration in an Operational Context
Modeling Gravity Wave in 3D with OpenFoam in an Aluminum Reduction Cell with Regular and Irregular Cathode Surfaces
Porous Carbon Anodes for the Supply of Methane during Electrowinning of Aluminium
Quantification of Sodium Present in Dry Aggregates and Anodes
Simulation-Based Decision Support in Cathode Relining Facility Scaling
Study of the Wetting of Coke by Different Pitches
The Start up & the Operation Performance of the Twin Green Anode Plant at Ma'aden Aluminium Smelter in Saudi Arabia
Uneven Cathode Wear in Aluminium Reduction Cells
Upgrade of the Firing and Control System at Egyptalum for Dual Fuel Firing

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