Constructive nonlinear dynamics applied to design of glycerol etherification process

Elena Vlad, Costin Sorin Bîldea, Grigore Bozga

Research output: Contribution to journalArticlepeer-review


A nonlinear approach to design of process systems is presented and applied to glycerol ethers plant. Based on a simplified mass balance, degree of freedom analysis is used to suggest the plantwide control structure. Depending on the operational parameter, the system shows either two or no steady states. The critical manifold separating the two domains should not be crossed when the system is disturbed or the design parameters are uncertain. Nonlinear analysis and constructive (synthesis-oriented) methods, ensuring the robustness of the design, are presented. The dynamic performance is assessed using rigorous process simulation in Aspen Dynamics.

Original languageEnglish
Pages (from-to)11-22
Number of pages12
JournalUPB Scientific Bulletin, Series B: Chemistry and Materials Science
Issue number4
Publication statusPublished - Dec 19 2011


  • Constructive nonlinear dynamics
  • Glycerol ethers
  • Process design

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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