D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 9/10 (2006.01) D21D 5/00 (2006.01)
Patent
CA 2447098
A method for estimating an optimal dosage of bleaching agent to be mixed with wood chips to be fed to a process for producing pulp characterized by a required brightness value. According to a set of wood chip properties characterizing the wood chips as estimated by a measurement system, corresponding wood chip properties data are fed at the inputs of a neural network 12, as well as an initial dosage value of the bleaching agent. The neural network generates a predicted brightness value for pulp to produce from the inspected wood chips. Te brightness predicted value is compared with the required brightness value to generate error data, which is used to optimize the bleaching agent dosage value by minimizing the error data. Prediction, comparison and optimization steps are repeated with the optimized bleaching agent dosage value until the brightness predicted value substantially reaches the required brightness value, to estimate the optimal bleaching agent dosage.
Bedard Pierre
Benaoudia Mokhtar
Daneault Claude
Laperriere Luc
Leduc Celine
Boudreau Jean-Claude
Centre de Recherche Industrielle Du Quebec
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