Coagulant Permeance (GPU a)   Selectivity
  H2 N2 H2/N2
Deionized water 25.0 0.49 51.0
Ethanol 71.0 1.97 36.0
Methanol 217.5 7.94 27.4
Temperature: 25°C, feed pressure: 10 bar
Table 6: Gas permeance and H2/N2 selectivity through PSf/PDMS composite membranes (different coagulants).