Valmet-supplied world's largest production line for bleached softwood pulp successfully started up at SCA Östrand mill in Sweden. With this project SCA Östrand doubled its production capacity from 430,000 tonnes to 900,000 tonnes per year and became the largest production line for bleached softwood kraft pulp in the world.

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SCA starts up Valmet-supplied bleached softwood pulp production line at its Östrand mill in Sweden

Valmet-supplied world's largest production line for bleached softwood pulp successfully started up at SCA Östrand mill in Sweden. With this project SCA Östrand doubled its production capacity from 430,000 tonnes to 900,000 tonnes per year and became the largest production line for bleached softwood kraft pulp in the world.

The project was implemented in phases, and the new evaporation plant was started up some months before the cooking and fiber line. Very soon after the start-up, pulp was produced with high strength, purity and brightness. In the next phase, the production is increased gradually towards the new nominal production capacity.

Valmet's delivery to the project included new cooking, fiber line and evaporation plant. The cooking plant has the world's largest soft wood digester, while the new evaporation plant is Sweden's largest with an evaporation capacity of 1,150 tons of water per hour.

The 7-effect evaporation plant is extremely energy-efficient, with its in-built possibility to also recover excess heat from Valmet's cooking plant and includes a methanol plant for producing liquid methanol. This enables Östrand to sell surplus energy in the form of green electricity.

Valmet is the leading global developer and supplier of process technologies, automation and services for the pulp, paper and energy industries.