Smelter Emission Control

 

Environmental management and control is now a major priority in the global aluminium industry. Combined with the ever increasing need to make smelting more energy efficient, many smelters in many developed countries are investing in minimising emissions of air pollutants and greenhouse gases.

Light Metals Research Centre has developed expertise in the following environmental fields:


Fluoride Emission Control and Management


LMRC developed a Fluoride Emission Management Guide (FEMG) – a simple, illustrated and practical guide for managing fluoride emissions – in order to lead smelters along the path to improvement. This was sponsored by the Asia Pacific Partnership for Clean Development and Climate (APP). To download a snapshot of the Guide, please click here. For a complete copy of the FEMG, please send your request to lightmetals@auckland.ac.nz.



Perfluorocarbon (PFC) Emission Management


PFCs – most notably CF4 and C2F6 – are generated as by-products of aluminium smelting and exhibit global warming potentials (GWP, relative to carbon dioxide) of 6,500 and 9,200, respectively.
 LMRC continues to be a leader in research on the generation of PFCs, particularly on emissions generated outside of conventionally understood anode effects. As with fluoride emissions, LMRC has developed a simple PFC Emission Management Guide (PFC-MG) to help smelters manage and control PFC emissions. For a copy of the PFC-MG, please send your request to lightmetals@auckland.ac.nz.


Management of Potroom Dust Emissions


The release of dust in aluminium smelting potrooms has the potential to adversely impact both the environment and the occupational health of workers.   LMRC offers:
  • Expertise in understanding the dominant sources of dust and the mechanisms by which dust in each potroom is generated.
  • Provide ways in which the smelter can make targeted reductions in potroom dust.

Our team has conducted smelter-based sampling campaigns for particulate emissions in the potroom, at both the operating cell level as well as in potroom roof vents, relating these emissions to operations, processes and material sources in the potroom

 


For detailed discussion with regards to environmental impacts and improvements, please contact Professor Margaret Hyland, LMRC Associate Director.

 

Dry scrubbing of potline fume

 

 

Boreal GasFinder used for monitoring HF emission

 

 

 

 

Dust sampling for analysis