VLE of Carbon Dioxide-Loaded Aqueous Potassium Salt of L-Histidine Solutions as a Green Solvent for Carbon Dioxide Capture: Experimental Data and Modelling
Table 6
Experimental carbon dioxide solubility in aqueous potassium salt of L-histidine.
Concentration (M)
Temperature (K)
313.15
333.15
353.15
P (kPa)
α (mol. (mol·HisK−1))
P (kPa)
α (mol. (mol·HisK−1))
P (kPa)
α (mol. (mol·HisK−1))
1.0
154.00
1.1007
392.60
0.8512
360.30
0.6319
511.00
1.2621
623.90
1.0293
621.60
0.7239
1001.0
1.5029
1011.7
1.1899
1023.4
0.7924
1499.0
1.7222
1448.9
1.2419
1434.9
0.9988
2055.0
1.8000
1923.9
1.2533
2021.6
1.1379
2418.0
1.9153
2605.1
1.3601
2641.1
1.1405
2801.0
2.0897
2992.6
1.4968
3123.5
1.2897
3450.0
2.2356
3523.9
1.6111
3555.8
1.4457
3901.0
2.3990
4192.6
1.8089
4078.9
1.5379
2.5
205.10
0.6782
352.60
0.5996
230.10
0.4279
502.60
0.6990
523.90
0.6665
455.10
0.4659
911.40
0.8031
942.60
0.7865
1136.4
0.5843
1432.6
0.9276
1861.4
0.8991
1436.4
0.6076
1972.6
1.1050
2286.4
0.9115
1905.10
0.7687
2423.9
1.1330
2792.6
0.9672
2361.4
0.7968
2837.5
1.1626
3155.1
0.9803
2917.6
0.8400
3398.9
1.2898
3448.9
1.0000
3598.9
0.9025
3930.1
1.3554
3905.1
1.1464
3923.9
0.9982
The standard uncertainties: u(T) = 0.1 K; u(P) = 1.25 kPa; u(M) for 1 and 2.5 molar concentration is 0.010 M and 0.004 M, respectively, whereas uc(α) = 0.082.
