|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Porous Carbon Anodes for the Supply of Methane during Electrowinning of Aluminium
||Babak Khalaghi, Geir Martin Haarberg
|On-Site Speaker (Planned)
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.
||Planned: Light Metals Volume