Kvaerner Power has signed a 100 million Euro contract for the supply of equipment, machinery and services to Stora Enso’s Skoghall Mill in Sweden. The mill is is used to produce carton-board aimed at consumer packaging and printing purposes.
According to Kvaerner Power, Stora Enso is modernising its Skoghall mill in central Sweden to ensure cost-effective production and to achieve world class environmental and energy efficiency performances.
Kvaerner Power will supply a new RECOX recovery boiler rated at 2,200 tons dry solids/day. The mill’s present evaporation plant will be replaced with a new EVAPS evaporation plant from Kvaerner Power, which is designed for evaporation of black liquor and liquor from the CTMP process. The total evaporation capacity will be 750 tons of water/hour.
The plant will use TUBEL technology as well as conventional falling film technology. The strong odorous gases generated at Skoghall mill will be burned in Kvaerner Power’s NCG treatment system (Non-Condensable Gas). Weak gases will be burned in the new recovery boiler.
The mill’s existing oil fired boiler will be converted to a bubbling fluidised bed boiler to burn biofuels such as bark, forest residue and sawmill waste. The new power boiler will produce energy for the mill’s processes with a thermal capacity of 136 MW.
The recovery boiler and evaporation plant will be completed by autumn 2005 and the power boiler conversion will be commissioned in the summer of 2006. The supply involves the joint resources of Kvaerner Power’s units in Sweden and Finland.