Hydro's technology center in Årdal, Norway, is installing a unit to remove sulfur dioxide (SO2) from the flue gas from aluminium production, the first industrial application of this technology.
The unit will reduce annual emissions of SO2 from the technology center by 200 metric tons.
The new treatment facility enables the Årdal metal plant to meet the stricter requirements for emissions of sulfur dioxide that are expected in the future.
"We have evaluated SO2 capture in Årdal for some time and have now found a new solution that can be implemented and that will remove at least 95 percent of the sulfur emissions. The installation will also be completed without creating additional emissions or production losses," says Are Dyrøy, who is responsible for environmental technology in the technology unit in Hydro's Primary Metal business area.
The new facility has an expected cost of NOK 35 million and is scheduled to be in full operation by the autumn of 2012. To implement this initiative the project has received support from the Process Industry Environment Fund in Norway. The fund was established in 2001 by the Federation of Norwegian Industries and the Ministry of the Environment for the purpose of planning and financing reductions in SO2 emissions from the Norwegian processing industry.