[ferro-alloys.com]Nornickel’s Investment Committee has given the go-ahead for projects to cut emissions and improve environmental conditions at Kola MMC’s Monchegorsk site. The Company plans to upgrade the 4th technological system in the sulphuric acid section and replace electrostatic precipitators (ESPs) in the dust collecting chamber of the Refining Shop, with total investment standing at RUB 6.2 bn.
Following decommissioning in 2000, the 4th technological system is now approved to go back online as Nornickel looks to ramp up its gas disposal activities.
The upgrade will see the construction of a new sulphuric acid production line, bringing the design capacity to 75,000 nm3/h, a more than 1.5 fold expansion. Cutting-edge equipment will be installed, with all metal pipework, gas ducts and acid tanks to be replaced with durable acid-resistant plastic alternatives. The total costs are estimated at RUB 3.088 bn.
On top of that, ca. RUB 3 bn will be spent to replace ESPs used for gas treatment in the Refining Shop’s fluidised bed furnaces. A new gas cleaning building is to be constructed as part of the initiative. It will feature 4 four-stage ESPs instead of the existing three-stage precipitators. The new equipment will increase the amount of impurities removed from sulphur-rich gases.