Stora Enso implements optimal refining solution from Metso at its Imatra mill in Finland

HELSINKI, June 16, 2009 (Press Release) - Stora Enso has implemented at its Imatra mill in Finland Metso's Advance Quality Control system for bleached chemi-thermomechanical pulp (BCTMP) production to reduce energy costs and pulp quality variability.

The project started as a trial project for the main line refiners and then was expanded to include impregnation, screening and reject refining. The advance quality control system was integrated with kajaaniMAP and kajaaniTQA analyzers to provide on-line quality measurements for the management of the pulp quality.

The purchase of the main line refining advance control was based upon a reduction in specific energy of 4% and quality variability of 40%. The trial evaluation of the screening and reject system continues and is expected to be completed during the third quarter of 2009.

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