Expansion Of Chemical Recovery Capacity At Södra Cell Värö Mill, Sweden, 2017PEERS

The massive upgrade of the Södra Cell Värö mill in Sweden was fairly recently completed. The mill’s capacity has been increased by 64 %, with a new maximum at 700,000 ADMT/year of Northern Bleached Softwood Kraft. This new capacity allows development and reinforcement of Södra’s market position. Besides capacity, environmental performance has also been a key focus area for improvements, including water consumption being significantly reduced through a combination of 100% reuse of evaporation condensates in the mill and the installation of high consistency wash presses in the upgraded fiberline. The use of fossil fuels had already been eliminated through the installation of a new lime kiln, but with the completion of the expansion project the mill has become even more energy efficient. This allows an increase in production of renewable power and biofuels, which helps the surrounding region to further reduce its use of fossil fuels. 

This paper reviews changes made to the evaporation and chemical recovery boiler area as part of the project and their role in the production capacity increase, improved environmental performance, as well as increased efficiency of the upgraded mill. 

Valmet supplied close to all the process equipment for the complete pulp mill. This paper reviews changes made to the evaporation and chemical recovery boiler area as part of the project and their role in the production capacity increase, improved environmental performance, as well as increased efficiency of the upgraded mill.  

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