Dynamics and control of integrated networks with purge streams

Michael Baldea, Prodromos Daoutidis, Aditya Kumar

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


This work concerns the dynamics and control of process networks in which impurities are present and are removed by a small purge stream. Using a singular perturbation analysis, it is shown that the presence of the small purge stream leads to a time scale separation in the dynamics of the network. A method is proposed for the derivation of nonstiff, reduced-order models in each time scale that are suitable for analysis and model-based control. Finally, two case studies are introduced and illustrative numerical simulation results are provided.

Original languageEnglish (US)
Pages (from-to)1460-1472
Number of pages13
JournalAIChE Journal
Issue number4
StatePublished - Apr 1 2006


  • Model reduction
  • Nonlinear control
  • Process networks
  • Purge

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