Aluminium

1
Aluminium

1. 56 growth in aluminium production in the last 10
   years
2. 40 of production in OECD, 2004
3. High trade - 75 of production traded
4. Highly concentrated - Top ten companies account
   for 54 of production
5. International Aluminium Institute - 99 of global
   capacity

2
Aluminium emissions

• 0.9 (estimated) of total anthropogenic GHG
  emissions
• Two production routes primary secondary
• Emissions sources (smelting stage, 80 of primary
  Aluminum emissions)
• electricity 011.9 tonnes of CO2 per tonne of
  aluminium
• process PFC 1.8
• process CO2 2.2
• Other 0.3
• Recent progress
• recycling (secondary production) increasing
• electricity use 6 reduction 1990-2003
• PFCs emissions 73 reduction 1990-2003

3
Primary and secondary aluminium, production and
emissions intensity
4
Primary aluminium electricity use and emissions
by region, 2003
5
Scope for Progress in Aluminium

• Adoption of Point Feeder Prebake Cells, current
  Best Available Technology (913 reduction)
• Future
• wetted drained cathodes (10-25 reduction)
• inert anodes (additional 15 reduction)
• carbothermic and kaolinite processes (26
  reduction)