Impact on Model Uncertainty of Diabatization in Distillation Columns

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Abstract

This work provides uncertainty and sensitivity analysis of design of conventional and heat integrated distillation columns using Monte Carlo simulations. Selected uncertain parameters are relative volatility, heat of vaporization, the overall heat transfer coefficient , tray hold-up, and adiabat ic index. Error propagation of uncertain parameters to second-law efficiency, the operation expenditures, the capital expenditures , and the dominant time constant for separations of benzene-toluene and benzene-flourobenzene are investigated . Conclusions favoring the HIDiC over the CDiC w.r.t. operation expenditures in the benzene-toluene separation can not made within 95 % confidence. The sensitivity of overall heat transfer coefficient decreases on all indicators as the separation becomes more difficult
Original languageEnglish
Title of host publicationProceedings for 10th International Conference on Distillation and Absorption
Publication date2014
Pages909-914
Publication statusPublished - 2014
Event10th International Conference on Distillation and Absorption - Friedrichshafen, Germany
Duration: 14 Sep 201417 Sep 2014
Conference number: 10

Conference

Conference10th International Conference on Distillation and Absorption
Number10
CountryGermany
CityFriedrichshafen
Period14/09/201417/09/2014

Keywords

  • Modeling and simulation
  • Distillation columns
  • Uncertainty
  • Sensitivity analysis
  • Diabatic distillation

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