Division BAT 64
United Kingdom
In order to prevent or collect diffuse emissions from electrolytic cells in primary aluminium production using the Søderberg technology, BAT is to use a combination of the techniques given below.
| Technique | |
|---|---|
| a | Use of paste with a pitch content between 25 % and 28 % (dry paste) |
| b | Upgrade the manifold design to allow closed point feeding operations and improved off-gas collection efficiency |
| c | Alumina point feeding |
| d | Increased anode height combined with the treatment in BAT 67 |
| e | Anode top hooding when high current density anodes are used, connected to the treatment in BAT 67 |