Table 2 Calculated Henry’s law constant and NRTL parameters for the DES-CO2 system, assuming α = 0.3, component j is CO2.

From: An environmentally friendly deep eutectic solvent for CO2 capture

Component i

\({b}_{ij}/(\text{J}/\text{mol})\)

\({b}_{ji} /(\text{J}/\text{mol})\)

Henry’s law constant /Mpa

OF %

TPAB-Fa (1:2) 25.0 °C

4701.31

 − 947.23

15.09

0.06

TPAB-Fa (1:2) 35.0 °C

2835.88

 − 1124.47

18.92

0.09

TPAB-Fa (1:2) 45.0 °C

3133.29

 − 1531.50

21.51

0.20

TPAB-Fa (1:1) 25.0 °C

5875.29

 − 916.57

17.51

0.11

TPAB-Fa (1:1) 35.0 °C

4366.95

 − 526.91

22.30

0.21

TPAB-Fa (1:1) 45.0 °C

2758.89

624.14

26.96

0.15