CBT Permeance
(GPUa)
Selectivity
CO2 CH4 H2 H2/CO2 CO2/N2
5°C 15.5 0.63 20.5 1.32 24.6
25°C 21.5 0.54 25 1.16 39.81
50°C 18.5 1.1 22.8 1.23 16.82
80°C 16.0 1.6 21 1.31 10.00
Temperature: 25°C, feed pressure: 10 bar
aGPU = 10−6 cm3 (STP) / (cm2 s cmHg)
Table 4: Gas permeance and CO2/CH4 and H2/CO2 selectivities of PDMS/PSf composite membrane using deionized water as coagulant (different CBT).