Required Report Items

1. Plots of permeate oxygen content versus total flow rate with inlet pressure as parameter for operation in co-current and counter-current flow.

2. Plots of non-permeate nitrogen content versus total flow rate with inlet pressure as parameter for operation in co-current and counter-current mode.

3. Plots of productivity versus total flow rate with inlet pressure as parameter comparing both flow modes; productivity equals total oxygen flow in the permeate (SCFH).

4. Plots of enrichment ratio versus total flow rate with inlet pressure as parameter comparing both flow modes; enrichment ratio equals the ratio of the oxygen concentration in the permeate to the concentration in the non-permeate.

5. Plots of recovery versus total flow rate as a function of pressure comparing both flow modes; recovery equals the fraction or percentage of oxygen in the feed which is recovered in the permeate.

6. Compare the performance of the two separator configurations based upon the first five items and their relative behavior with that expected from the literature.

7. Compare time required to attain steady state at different pressures and flow rates for one of the flow modes.

8. Redo both the co-current and counter-current experiments at the maximum pressure and maximum non-permeate flow rate performed in the first week of your experiment. Compare the performance of the separator from week #1 to week #2 based upon the first five items.

9. For #3, 4 and 5, compute the uncertainties in these performance parameters due to uncertainties in permeate oxygen concentration, non-permeate oxygen concentration, non-permeate flow rate and pressure.

1. Green, D. W., Ed.; Perry's Chemical Engineers' Handbook, 6th Ed., McGraw Hill, New York (1985) pp. 17-14 to 17-18.

2. Antonson, C.R., R.J. Gardner, C.F. King and O.Y. Ko; Ind. Eng. Chem. Process Des. Dev., 16, #4, 463-469 (1977).(link to pdf files)

3. Hwang, S.T. and K. Kammermeyer; Membranes in Separations, Techniques in Chemistry Volume VII, Wiley-Interscience, NY (1975). (link to pdf files)

4. Stephanopoulos, G.; Chemical Process Control; Prentice-Hall, Englewood, NJ (1984).

5. Air Product Prism Membrane Information.

6. Air Products PRISM Membranes Website

Previous | Next | Back to Main | Table of Contents