Table A2.
Permeability of heterogeneous membranes containing SiO2 to different gases measured for different feed pressure and temperature values.
| Membrane Type | Feed Pressure [bar] | Permeability Pi [barrer] | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| N2 | CH4 | CO2 | ||||||||
| Process Temperature [ °C] | Process Temperature [ °C] | Process Temperature [ °C] | ||||||||
| 25 | 4[°C] | 55 | 25 | 4[°C] | 55 | 25 | 4[°C] | 55 | ||
|
PEBAX 2533
+2 wt% SiO2 |
2 | 6.0 | 14.6 | 17.0 | 20.5 | 42.3 | 50.0 | 155.7 | 230.2 | 269.2 |
| ±0.2 | ±0.4 | ±0.4 | ±0.3 | ±0.7 | ±0.8 | ±1.2 | ±1.8 | ±2.2 | ||
| 4 | 5.9 | 12.2 | 15.8 | 20.3 | 38.0 | 49.4 | 158.0 | 238.1 | 270.6 | |
| ±0.1 | ±0.3 | ±0.4 | ±0.3 | ±0.6 | ±0.8 | ±1.3 | ±1.9 | ±2.2 | ||
| 8 | 5.1 | 11.2 | 15.1 | 19.0 | 38.1 | 46.9 | 162.3 | 240.9 | 269.7 | |
| ±0.1 | ±0.3 | ±0.4 | ±0.3 | ±0.6 | ±0.8 | ±1.3 | ±1.9 | ±2.2 | ||
|
PEBAX 2533
+5 wt% SiO2 |
2 | 6.6 | 12.8 | 16.1 | 23.2 | 41.0 | 49.8 | 167.0 | 243.8 | 279.8 |
| ±0.2 | ±0.3 | ±0.4 | ±0.4 | ±0.7 | ±0.8 | ±1.3 | ±2.0 | ±2.2 | ||
| 4 | 5.6 | 12.4 | 14.7 | 21.3 | 39.8 | 47.6 | 169.5 | 258.6 | 282.5 | |
| ±0.1 | ±0.3 | ±0.4 | ±0.3 | ±0.6 | ±0.8 | ±1.4 | ±2.1 | ±2.3 | ||
| 8 | 5.2 | 10.5 | 14.0 | 19.2 | 36.7 | 44.3 | 171.5 | 256.4 | 280.4 | |
| ±0.1 | ±0.3 | ±0.4 | ±0.3 | ±0.6 | ±0.7 | ±1.4 | ±2.1 | ±2.2 | ||