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Näslund, Henrik
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Fridén, H., Näslund, H., Stattin, A. & Löfgren, G. (2006). Online decision support and optimization for kraft paper production. In: Control systems 2006 : Measurement and control: applications for the operator, Tampere, Finland, 6-8 June 2006: (pp. 313-). Helsinki: Kopio Niini - Painoporssi,
Open this publication in new window or tab >>Online decision support and optimization for kraft paper production
2006 (English)In: Control systems 2006 : Measurement and control: applications for the operator, Tampere, Finland, 6-8 June 2006, Helsinki: Kopio Niini - Painoporssi, , 2006, p. 313-Conference paper, Published paper (Other scientific)
Abstract [en]

The MondiPackaging Dynäs pulp & paper mill in Sweden produces strong sack and kraft paper from chemical softwood pulp. Despite good quality a project was initiated by a need for less variability in paper quality, and less energy consumption. It was known that there is variability in incoming stock, and that the HC and LC refining strategies could be improved. The aim of the project is to reduce energy consumption by 10%, and to reduce quality variation by installing a new online fibre analyzer, PulpEye, and implementing modern modelling and control methodology. We have used multivariate subspace models in combination with optimization to create an OPC based interactive application for on-line operator support and optimization of kraft paper production. The application is now installed and is under evaluation. The specific refiner energy has so far been reduced with at least 25%. The decision support application is indicating even more reduction potential.

Place, publisher, year, edition, pages
Helsinki: Kopio Niini - Painoporssi,, 2006
Keywords
Chemical pulping, Refining, Multivariate modelling, Simulation, Energy control, Quality control, Decision support
National Category
Control Engineering Computer Sciences Probability Theory and Statistics
Identifiers
urn:nbn:se:miun:diva-3798 (URN)4159 (Local ID)9525183262 (ISBN)4159 (Archive number)4159 (OAI)
Available from: 2008-09-30 Created: 2008-11-03 Last updated: 2018-01-12Bibliographically approved
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