Loading...

Modeling and Optimization of Supersonic Separators

Behdani, Behrouz | 2015

1498 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48177 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Farhadi, Fathollah
  7. Abstract:
  8. Supersonic separation is a modern technology which is used in petroleum’s industry. Supersonic flow is obtained by converging-diverging nozzle in which by decreasing pressure and increasing fluid’s velocity, we can reach low temperature which is required for separation. After separation in low temperature, pressure is recovered via normal shockwave or a second nozzle. In the case of using second nozzle, fluid’s velocity is decreased and its pressure is increased. In these separators, we have two important issues: Separation efficiency and Pressure recovery . On the other hand, nozzle’s performance depends on two sets of factors: Factors related to nozzle’s geometry and Factors related to process conditions. So, for appropriate performance in both separation and pressure recovery, we should pay attention to these factors. In this research, the impacts of process conditions like inlet and outlet pressure and inlet temperature is discussed. Pressure recovery is one of important factors in designing supersonic separators and by changing diverging part’s concavity we can increase pressure recovery from 0.76 up to 0.85. To increase separation efficiency, a horizontal pipe has been used in throat which has optimum length of 10 D in which separation efficiency reachesh 95%. Separation efficiency increase from 9% to 56% be increasing swirl in inlet flow. Acoustic analysis of nozzle has shown that acoustic power increases with increase in inlet velocity
  9. Keywords:
  10. Pressure Recovery ; Separation Efficiency ; Nozzles ; Shock Wave ; Supersonic Separation ; Natural Gas Dehydration ; Normal Shock Wave

 Digital Object List

 Bookmark

...see more