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Combined Experimental and Model-Based Optimisation of Formation and Retention


September 1, 2010
By Pulp & Paper Canada

Abstract: PLS models for retention and formation were built based on paper machine data and simultaneously on pilot trials. Mill modelling confirmed the main influencing variables. But the interrelati…

Abstract: PLS models for retention and formation were built based on paper machine data and simultaneously on pilot trials. Mill modelling confirmed the main influencing variables. But the interrelationships in the data set from normal machine operation impeded a clear-cut parameter selection. By using flocculation as a linking parameter, a new approach could be outlined for a quantita tive scale-up of retention and flocculation pilot results to predict stock-related effects and to optimise retention and formation on a mill scale.

Paper presented at the 2008 Control Systems Pan-Pacific Conference in British Columbia, June 16-18, 2008.

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Keywords: FORMATION, RETENTION, FLOCCULATION, MODELLING, UP-SCALING, RETENTION AID, PILOT EXPERIMENTS

Full manuscript available at www.paptac.ca.


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