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Optimization of industrial CSTR for vinyl acetate polymerization using novel shuffled frog leaping based hybrid algorithms and dynamic modeling

Pakravesh, H ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.1016/j.compchemeng.2011.04.004
  3. Publisher: 2011
  4. Abstract:
  5. Industrial scale continuous stirred tank reactor (CSTR) for production and grade transitions of poly vinyl acetate (PVAc) at the different reactor sizes was investigated. Such reactor is known to show oscillatory behavior and to have periodic limit points, particularly at high molecular weights. Four efficient novel hybrid optimization methods which use variable population size genetic algorithm (VPGA), bacterial optimization algorithm (BO) and shuffled frog leaping method (SFL) were introduced for this kind of reactors. These algorithms can reliably find dynamically stable points with desired conditions for PVAc production. The dynamic modeling combined with the new hybrid optimization methods were used to obtain the optimal operating conditions which increased the outlet flow rate by 17%
  6. Keywords:
  7. Bacterial optimization ; Continuous stirred tank reactor ; Desired conditions ; Dynamic modeling ; Grade transition ; High molecular weight ; Hybrid algorithms ; Hybrid optimization method ; Industrial scale ; Limit points ; Optimal operating conditions ; Optimization algorithms ; Oscillatory behaviors ; Outlet flows ; Reactor sizes ; Shuffled frog leaping ; Stable points ; Variable population-size genetic algorithms ; Vinyl acetates ; Bacteriology ; Genetic algorithms ; Polymerization ; Polyvinyl acetates ; Population statistics ; Volatile fatty acids ; Optimization
  8. Source: Computers and Chemical Engineering ; Volume 35, Issue 11 , November , 2011 , Pages 2351-2365 ; 00981354 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0098135411001360