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Distribution control of particulate systems based on population balance equation models

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1 Author(s)
Henson, M.A. ; Dept. of Chem. Eng., Massachusetts Univ., Amherst, MA, USA

Manufacturing processes in which the desired product takes the form of individual particles are ubiquitous in the chemical, pharmaceutical and agricultural industries. Particulate processes often are modeled using a form of the population balance equation (PBE) which describes the evolution of the particle distribution. In many applications, control of the particle distribution is necessary to achieve the desired product properties. In this paper, a model predictive control strategy based on a discretized representation of a general one-dimensional PBE is proposed for particle distribution control. The controller is formulated to minimize the least squares difference between the predicted and target distribution measurements. The proposed method is applied to the problem of cell mass distribution control in a continuous yeast fermentor.

Published in:

American Control Conference, 2003. Proceedings of the 2003  (Volume:5 )

Date of Conference:

4-6 June 2003