GPI West Monroe digester optimization project, 19PEERS

Valmet Inc. and Graphic Packaging Intl. (GPI) collaborated on continuous digester optimization projects that included three digesters in West Monroe, Louisiana. Graphic Packaging is one of the world’s largest manufacturers of folding cartons, unbleached paperboard, coated recycled board, microwave packaging and machinery. The West Monroe facility manufactures combined folding carton for use in beverage and other product packaging.

Kraft pulp digester operation plays a critical role in the whole pulp mill economy. Furthermore, high and steady pulp quality results in additional bottom line profits for the paper mill. The key to pulp production and quality optimization is to ensure selective delignification, which can be accomplished by precise and strategic management and control of optimum cooking conditions. Accurate and reliable pulp quality measurements are essential elements of an advanced control package. 

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