Simulation and control of monomer conversion in a continuous emulsion polymerization reactor

Barazandegan, M ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1016/j.ifacol.2015.08.200
  3. Publisher: IFAC Secretariat , 2015
  4. Abstract:
  5. A detailed pseudo-bulk model has been used for prediction of conversion and particle size distribution (PSD) of vinyl acetate in a continuous emulsion polymerization reactor. Finite volume (FV) and moment techniques are applied for solving population balance equation under continuous operation. It is found that both methods can predict sustained oscillations in the monomer conversion, however the FV method matches the experimental data better than the moment method. The monomer conversion and free surfactant concentration are controlled via two single control loops. In this work, a new control strategy for controlling monomer conversion has been proposed. It has been shown that monomer conversion and free surfactant concentration can be controlled simultaneously by manipulating initiator and surfactant feed rates
  6. Keywords:
  7. Continuous reactor ; Emulsification ; Emulsion polymerization ; Mathematical models ; Method of moments ; Particle size ; Particle size analysis ; Polyvinyl acetates ; Surface active agents ; Closed-loop control ; Continuous emulsion polymerization ; Continuous operation ; Continuous reactors ; Monomer conversions ; Population balance equation ; Surfactant concentrations ; Sustained oscillations ; Monomers
  8. Source: IFAC Proceedings Volumes (IFAC-PapersOnline), 7 June 2015 through 10 June 2015 ; Volume 48, Issue 8 , 2015 , Pages 315-320 ; 14746670 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S2405896315010678