Separation of Air Components by Countercurrent and Co-Current Gas Permeation

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram CDF Player or other Wolfram Language products.

Requires a Wolfram Notebook System

Edit on desktop, mobile and cloud with any Wolfram Language product.

This Demonstration studies enriching the oxygen content of air with a single-stage membrane module. This problem was first treated in [1] and later in [2 and 3]. The binary mixture, (oxygen) and (nitrogen), has an ideal separation factor , the ratio of the permeabilities of the two species. The permeability of oxygen is ). The membrane is more permeable to oxygen and has a thickness . The stage cut, , is set by the user. The values of the pressures in the feed and permeate sides are chosen equal to cmHg and cmHg, respectively, which give a ratio of pressures, , equal to 10. The feed rate and composition are given by , , and . This Demonstration computes the reject and permeate compositions as well as the membrane area for the countercurrent and co-current flow cases.
.

Contributed by: Housam Binous (March 2011)
Open content licensed under CC BY-NC-SA


Snapshots


Details

References

[1] W. P. Walawender and S. A. Stern, "Analysis of Membrane Separation Parameters. II. Counter-Current and Cocurrent Flow in a Single Permeation Stage," Separation Science and Technology, 7(5), 1972 pp. 553–584.

[2] C. J. Geankoplis, Transport Processes and Unit Operation, 3rd ed., Englewood Cliffs, NJ: Prentice–Hall, 1993.

[3] H. Binous, "Gas Permeation Computations with Mathematica," Chemical Engineering Education, 40(2), 2006 pp. 140–144.



Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.
Send