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Processes 2017, 5(3), 51; doi:10.3390/pr5030051

On-Line Dynamic Data Reconciliation in Batch Suspension Polymerizations of Methyl Methacrylate

1
Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro RJ 21941-972, Brazil
2
Departmento de Engenharia Química e de Petróleo, Universidade Federal Fluminense, Passo da Pátria 156, E315, Niterói RJ 24210-240, Brazil
*
Author to whom correspondence should be addressed.
Received: 16 July 2017 / Revised: 20 August 2017 / Accepted: 21 August 2017 / Published: 5 September 2017
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Abstract

A phenomenological model was developed to describe the dynamic evolution of the batch suspension polymerization of methyl methacrylate in terms of reactor temperature, pressure, concentrations and molecular properties of the final polymer. Then, the phenomenological model was used as a process constraint in dynamic data reconciliation procedures, which allowed for the successful monitoring of reaction variables in real-time and on-line. The obtained results indicate that heat transfer coefficients change significantly during the reaction time and from batch to batch, exerting a tremendous impact on the process operation. Obtained results also indicate that it can be difficult to attain thermodynamic equilibrium conditions in this system, because of the continuous condensation of evaporated monomer and the large mass transfer resistance offered by the viscous suspended droplets. View Full-Text
Keywords: dynamic data reconciliation; soft-sensor; mathematical model; suspension polymerization; methyl methacrylate; parameter estimation; batch process dynamic data reconciliation; soft-sensor; mathematical model; suspension polymerization; methyl methacrylate; parameter estimation; batch process
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Coimbra, J.C.; Melo, P.A.; Prata, D.M.; Pinto, J.C. On-Line Dynamic Data Reconciliation in Batch Suspension Polymerizations of Methyl Methacrylate. Processes 2017, 5, 51.

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