Sample | PEI wt% | Feed pressure | Permeance (GPU) | Selectivity | |
---|---|---|---|---|---|
H2 | CH4 | ||||
NMP-23 | 23 | 3 | 464.2 | 248.9 | 1.9 |
5 | 493.3 | 280.8 | 1.8 | ||
7 | 530.2 | 311.9 | 1.7 | ||
10 | 580.0 | 355.6 | 1.6 | ||
NMP-27 | 27 | 3 | 43.7 | 14.5 | 3.0 |
5 | 47.1 | 16.1 | 2.9 | ||
7 | 48.7 | 17.3 | 2.8 | ||
10 | 51.1 | 19.8 | 2.6 | ||
GBL-23 | 23 | 3 | 109.3 | 43.2 | 2.5 |
5 | 129.3 | 56.9 | 2.3 | ||
7 | 141.5 | 80.8 | 1.8 | ||
10 | 153.5 | 94.3 | 1.6 | ||
GBL-27 | 27 | 3 | 1.1 | 0.3 | 3.3 |
5 | 1.8 | 0.7 | 2.6 | ||
7 | 1.9 | 0.8 | 2.4 | ||
10 | 2.0 | 1.0 | 2.0 |