Case Study: SCA Obbola improves evaporation efficiency and cuts steam use with Valmet Evaporation Optimizer

SCA Obbola cuts burning liquor dry solids deviation by 50% with Valmet

The customer, SCA Obbola, a producer of packaging paper, faced the challenge of maintaining high and stable dry solids in burning liquor despite changes in their wood supply. They also sought to improve evaporation efficiency for energy savings and needed to replace an obsolete optimization solution. To address this, they implemented the Valmet Evaporation Optimizer from vendor Valmet.

The solution Valmet implemented was an advanced process control application that coordinates controls across the evaporation train. This resulted in evaporation efficiency improving by up to 8.7%, significantly reducing steam consumption. Valmet's solution also cut the burning liquor dry solids deviation by 50%, which stabilized operations for both the evaporation plant and the recovery boiler.

SCA Obbola