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Yongtaek Lee, Ph.D., Professor Dept. of Chemical Engineering Chungnam National University

Numerical Analysis on Separation of Methane through Hollow Fiber Membrane Module: Cascade Operation. Yongtaek Lee, Ph.D., Professor Dept. of Chemical Engineering Chungnam National University. Flow configuration. Results date file. Operation program. Flow configuration in a module

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Yongtaek Lee, Ph.D., Professor Dept. of Chemical Engineering Chungnam National University

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  1. Numerical Analysis on Separation of Methane through Hollow Fiber Membrane Module:Cascade Operation Yongtaek Lee, Ph.D., Professor Dept. of Chemical EngineeringChungnam National University

  2. Flow configuration. Results date file Operation program.

  3. Flow configuration in a module • Counter-current type. • PC operating system • MS Windows 7. • Computer program • Compaq Visual Fortran 6.6 .

  4. Process design 1단 2단 1단 2단 3단 1단 2단 2 - stage process system 3 - stage process system

  5. 2 – stage process system flow chart (Model A) (Model B)

  6. 2 – stage process system flow chart

  7. Operating conditions

  8. Effect of feed pressure in feed stream : Pressure of permeate = 1 atm <Model A> 1단 2단 mole fraction of CH4 in retentate. Vs. Flow rate

  9. Effect of feed pressure in feed stream : Pressure of permeate = 1 atm <Model A> 1단 2단 Recovery CH4 Vs. Flow rate

  10. Effect of membrane area in feed stream : Pressure of permeate = 1 atm <Model A> 1단 2단 Mole fraction of CH4 in retentate. Vs. Flow rate

  11. Effect of membrane area in feed stream : Pressure of permeate = 1 atm <Model A> 1단 2단 Recovery CH4 vs. Flow rate

  12. Effect of feed pressure in feed stream Pressure of permeate = 1 atm <Model B> 1단 2단 Feed mole fraction of CH4 in retentate. Vs. Flow rate

  13. Effect of feed pressure in feed stream Pressure of permeate = 1 atm <Model B> 1단 2단 Recovery CH4 vs. Flow rate

  14. Effect of membrane area in feed stream Pressure of permeate = 1 atm <Model B> 1단 2단 Feed mole fraction of CH4 in retentate. Vs. Flow rate

  15. Effect of membrane area in feed stream Pressure of permeate = 1 atm <Model B> 1단 2단 Recovery CH4 vs. Flow rate

  16. 2단 (A) 1단 1단 (B) 2단 Mole fraction of CH4 in retentate vs. Membrane area

  17. 2단 (A) 1단 1단 (B) 2단 Recovery of CH4 Vs. Membrane area

  18. Operating condition

  19. Case. I 1단 2단 3단

  20. Case. II 1단 2단 3단

  21. Case. III 1단 2단 3단

  22. Case. I vs Case. II 1단 2단 3단

  23. Case. II vs Case. III 1단 2단 3단 압력을 20 atm 으로높일 경우 회수율을 얻기가 어려움. 따라서 적정 압력 필요.

  24. Summary • The target could not be obtained through the two stage membrane systems of Model AandModel B in terms of the purity and the recovery of methane. • The three stage membrane system can provide the successful purity and the recovery of methane. • Another type of the membrane cascade system may be more useful to get the final goals of purity and recovery.

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