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Experimental Separation of Gas Condensate by Vortex Tube Cascade and Validation of Simulation Results

Majidi, Davood | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 47820 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Farhadi, Fathollah
  7. Abstract:
  8. The aim of this study is to survey the ability of vortex tube cascade for separating heavy components of a gas mixture. For this purpose, three vortex tubes based on previous experiences have been manufactured. Also, a helical double pipe heat exchanger has been designed and constructed. Because of the vortex tube’s ability in developing thermal separation, the effect of thermophysical parameters like feed’s temperature, inlet and outlet pressure of air on the thermal separation performance were evaluated. The recommended correlations for estimating outlet temperature of hot and cold flows, have been validated against experimental data. Moreover, various arrangements of vortex tubes to achieve the lowest cooling and highest heated outlet temperature were studied by using MATLAB and HYSYS. Furthermore, the effect of the aforementioned thermophysical parameters on the ability of vortex tube to separate heavier components of LPG has been studied. By using the obtained quasi-experimental relations, simulation of various arrangements has become possible. The effect of recycling a part of the hot flow, containing heavier components, on the separation efficiency has been investigated. Eventually, to evaluate the separating performance and the cost of operation, a comparison is presented between the best vortex tubes arrangement and conventional separation options including distillation towers to separate appropriately heavier components. It was concluded that the optimal arrangement of vortex tubes is much less costly than distillation tower and two-phase separator for the same level of separation
  9. Keywords:
  10. Vortex Tubes ; Mass Separating Agent (MSA) ; Liquid Petroleum Gas (LPG) ; Thermal Separation ; Optimal Shape ; Heavy Component

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