Control of product quality for batch nylon 6,6 autoclaves

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The focus of this paper is on improving the monitoring and control of end-use quality variables in batch nylon 6,6 autoclaves. Relatively few on-line measurements and frequent disturbances often result in a significant amount of variability in the product quality variables for this system. To lessen the sensitivity to these disturbances, a fundamental model of the nylon autoclave process is developed from first principles and is subsequently used to develop and test practical reactor control configurations. Various FID implementations are evaluated according to their robustness to typical process disturbances. The model is also used to formulate strategies designed to detect process disturbances and monitor the development of the quality variables on-line. The process monitoring results are then used in conjunction with inferential quality control strategies to improve robustness to typical process disturbances. (C) 1998 Elsevier Science Ltd. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
1998-11
Language
English
Article Type
Article
Keywords

POLYMERIZATION; REACTORS; MODEL

Citation

CHEMICAL ENGINEERING SCIENCE, v.53, no.21, pp.3685 - 3702

ISSN
0009-2509
DOI
10.1016/S0009-2509(98)00148-1
URI
http://hdl.handle.net/10203/73330
Appears in Collection
CBE-Journal Papers(저널논문)
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