Abstract
The permeabilities of CH4, CO2, CH3OH, H2O, O2, and CO through films of Kapton® polyimide were measured at temperatures of 50, 100, 150, 200, and 250°C and pressures below 1 atm. Apparent activation energies for the permeation of the pure components ranged from 31.6 kJ mol-1 for CH4 to nearly 0 for H2O under the conditions studied. The ideal permselectivity for methanol relative to methane decreased from over 100 to under 10 as the temperature was increased from 50 to 250°C.
| Original language | English |
|---|---|
| Pages (from-to) | 91-97 |
| Number of pages | 7 |
| Journal | Chemical Engineering Communications |
| Volume | 143 |
| DOIs | |
| State | Published - 1996 |
Keywords
- Methane
- Methanol
- Permeation
- Polyimide
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