2
0
2010
sho
adi
0
journal
Original
Shokouhi, M.[Mohammad]
Adibi, M.[Mina]
Jalili, A. H.[Amir Hossein]
Hosseini-Jenab, M.[Masih]
Mehdizadeh, A.[Ali]
J. Chem. Eng. Data
2010
2020-09-29
Article Solubility and Diffusion of H2S and CO2 in the Ionic Liquid 1-(2-Hydroxyethyl)-3-methylimidazolium Tetrafluoroborate
The solubilities and diffusion coefficients of hydrogen sulfide and carbon dioxide gases in the ionic liquid (IL) 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate ([hemim][BF4]), at temperatures ranging from (303.15 to 353.15) K and pressures up to 1.1 MPa, were determined. The solubility data were correlated using the Krichevsky-Kasarnovsky equation, and Henry s law constants at different temperatures were obtained. From the solubility data, the partial molar thermodynamic functions of solution such as Gibbs energy, enthalpy, and entropy were calculated. The diffusion coefficients were obtained for H2S and CO2 using a semi-infinite volume approach, and a correlation equation with temperature is presented for each gas. A comparison showed that the solubility of H2S was about three times its magnitude, and its diffusion coefficient is of the same order of magnitude as that of CO2 in the IL studied in this work.
10.1021/je900716q
4
55
1663-1668
1
InChI=1S/CO2/c2-1-3
CURLTUGMZLYLDI-UHFFFAOYSA-N
carbon dioxide
CO2
1
Commercial source
1
99.5
3
Stated by supplier
2
InChI=1S/H2S/h1H2
RWSOTUBLDIXVET-UHFFFAOYSA-N
hydrogen sulfide
H2S
1
Commercial source
1
99.5
3
Stated by supplier
3
InChI=1S/C6H11N2O.BF4/c1-7-2-3-8(6-7)4-5-9;2-1(3,4)5/h2-3,6,9H,4-5H2,1H3;/q+1;-1
KLTUZFZUYLXTFF-UHFFFAOYSA-N
1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate
C6H11BF4N2O
1
Synthesized by the authors
1
0.01
1
Karl Fischer titration
2
99.5
3
NMR (proton)
1
3
1
Principal objective of the work
KNA
TRC
4/9/2010
1
Mass density, kg/m3
Pycnometric method
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
300.71
5
1
1384
4
1
1
1
303.35
5
1
1380
3
1
1
1
304.95
5
1
1379
4
1
1
1
307.31
5
1
1376
4
1
1
1
310.81
5
1
1373
4
1
1
1
314.35
5
1
1369
4
1
1
2
1
1
3
1
Principal objective of the work
KNA
TRC
4/9/2010
1
Binary diffusion coefficient, m2/s
measurement of pressure
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Gas
1
Mole fraction
1
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
1.4e-08
3
1
2.3
1
313.15
5
1
2.09e-08
3
1
3.6
1
323.15
5
1
3.94e-08
3
1
6.4
1
333.15
5
1
4.65e-08
3
1
7.5
1
343.15
5
1
5.71e-08
3
1
9.2
1
353.15
5
1
7.16e-08
3
1
11.5
3
1
1
3
1
Principal objective of the work
KNA
TRC
4/9/2010
1
Mole fraction
Gas Volume Before and After Dissolution
1
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Gas
1
Temperature, K
Liquid
2
Pressure, kPa
Liquid
1
303.15
5
2
175
3
1
0.018
2
1
0.002
1
303.15
5
2
233
3
1
0.021
2
1
0.002
1
303.15
5
2
350
2
1
0.033
2
1
0.002
1
303.15
5
2
434
3
1
0.041
2
1
0.004
1
303.15
5
2
645
3
1
0.061
2
1
0.004
1
303.15
5
2
733
3
1
0.068
2
1
0.004
1
303.15
5
2
766
3
1
0.071
2
1
0.006
1
303.15
5
2
1102
4
1
0.102
3
1
0.006
1
313.15
5
2
114
3
1
0.008
1
1
0.002
1
313.15
5
2
291
3
1
0.019
2
1
0.002
1
313.15
5
2
408
3
1
0.031
2
1
0.002
1
313.15
5
2
549
3
1
0.043
2
1
0.002
1
313.15
5
2
677
3
1
0.053
2
1
0.004
1
313.15
5
2
808
3
1
0.065
2
1
0.004
1
313.15
5
2
917
3
1
0.071
2
1
0.004
1
313.15
5
2
1016
4
1
0.079
2
1
0.006
1
323.15
5
2
119
3
1
0.007
1
1
0.002
1
323.15
5
2
300
1
1
0.019
2
1
0.002
1
323.15
5
2
427
3
1
0.028
2
1
0.002
1
323.15
5
2
571
3
1
0.041
2
1
0.002
1
323.15
5
2
846
3
1
0.059
2
1
0.004
1
323.15
5
2
960
2
1
0.065
2
1
0.004
1
323.15
5
2
1064
4
1
0.072
2
1
0.004
1
333.15
5
2
125
3
1
0.006
1
1
0.002
1
333.15
5
2
312
3
1
0.018
2
1
0.002
1
333.15
5
2
444
3
1
0.026
2
1
0.002
1
333.15
5
2
597
3
1
0.037
2
1
0.004
1
333.15
5
2
738
3
1
0.045
2
1
0.004
1
333.15
5
2
882
3
1
0.055
2
1
0.004
1
333.15
5
2
999
3
1
0.061
2
1
0.006
1
343.15
5
2
130
2
1
0.005
1
1
0.002
1
343.15
5
2
325
3
1
0.016
2
1
0.002
1
343.15
5
2
460
2
1
0.025
2
1
0.002
1
343.15
5
2
619
3
1
0.035
2
1
0.002
1
343.15
5
2
768
3
1
0.042
2
1
0.004
1
343.15
5
2
917
3
1
0.051
2
1
0.004
1
343.15
5
2
1040
3
1
0.057
2
1
0.006
1
353.15
5
2
135
3
1
0.004
1
1
0.002
1
353.15
5
2
335
3
1
0.016
2
1
0.002
1
353.15
5
2
479
3
1
0.022
2
1
0.002
1
353.15
5
2
644
3
1
0.032
2
1
0.004
1
353.15
5
2
796
3
1
0.04
1
1
0.01
1
353.15
5
2
950
2
1
0.049
2
1
0.004
1
353.15
5
2
1194
4
1
0.061
2
1
0.006
4
2
1
3
1
Principal objective of the work
KNA
TRC
4/9/2010
1
Binary diffusion coefficient, m2/s
measurement of pressure
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Gas
1
Mole fraction
2
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
1.79e-08
3
1
2.9
1
313.15
5
1
2.15e-08
3
1
3.5
1
323.15
5
1
2.76e-08
3
1
4.4
1
333.15
5
1
3.24e-08
3
1
5.2
1
343.15
5
1
3.8e-08
3
1
6.1
1
353.15
5
1
4.41e-08
3
1
7.1
5
2
1
3
1
Principal objective of the work
KNA
TRC
4/9/2010
1
Mole fraction
Gas Volume Before and After Dissolution
2
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Gas
1
Temperature, K
Liquid
2
Pressure, kPa
Liquid
1
303.15
5
2
136
3
1
0.039
2
1
0.002
1
303.15
5
2
164
3
1
0.048
2
1
0.002
1
303.15
5
2
289
3
1
0.081
2
1
0.004
1
303.15
5
2
462
3
1
0.126
3
1
0.006
1
303.15
5
2
532
3
1
0.144
3
1
0.007
1
303.15
5
2
652
3
1
0.174
3
1
0.009
1
303.15
5
2
703
3
1
0.187
3
1
0.009
1
303.15
5
2
802
3
1
0.208
3
1
0.01
1
303.15
5
2
969
3
1
0.235
3
1
0.012
1
303.15
5
2
1027
4
1
0.247
3
1
0.012
1
313.15
5
2
121
3
1
0.028
2
1
0.002
1
313.15
5
2
235
3
1
0.055
2
1
0.003
1
313.15
5
2
338
3
1
0.076
2
1
0.004
1
313.15
5
2
505
3
1
0.112
3
1
0.006
1
313.15
5
2
641
3
1
0.14
3
1
0.007
1
313.15
5
2
760
2
1
0.162
3
1
0.008
1
313.15
5
2
890
2
1
0.186
3
1
0.009
1
313.15
5
2
969
3
1
0.202
3
1
0.01
1
313.15
5
2
1066
4
1
0.217
3
1
0.011
1
323.15
5
2
142
3
1
0.026
2
1
0.002
1
323.15
5
2
250
2
1
0.047
2
1
0.002
1
323.15
5
2
350
2
1
0.065
2
1
0.003
1
323.15
5
2
444
3
1
0.083
2
1
0.004
1
323.15
5
2
531
3
1
0.097
2
1
0.005
1
323.15
5
2
606
3
1
0.111
3
1
0.006
1
323.15
5
2
675
3
1
0.123
3
1
0.006
1
323.15
5
2
793
3
1
0.142
3
1
0.007
1
323.15
5
2
931
3
1
0.164
3
1
0.008
1
323.15
5
2
1003
4
1
0.176
3
1
0.009
1
333.15
5
2
155
3
1
0.025
2
1
0.002
1
333.15
5
2
277
3
1
0.045
2
1
0.002
1
333.15
5
2
394
3
1
0.062
2
1
0.003
1
333.15
5
2
495
3
1
0.077
2
1
0.004
1
333.15
5
2
613
3
1
0.096
2
1
0.005
1
333.15
5
2
757
3
1
0.116
3
1
0.006
1
333.15
5
2
868
3
1
0.133
3
1
0.007
1
343.15
5
2
300
1
1
0.041
2
1
0.002
1
343.15
5
2
408
3
1
0.055
2
1
0.003
1
343.15
5
2
518
3
1
0.07
2
1
0.004
1
343.15
5
2
613
3
1
0.082
2
1
0.004
1
343.15
5
2
755
3
1
0.099
2
1
0.005
1
343.15
5
2
872
3
1
0.115
3
1
0.006
1
343.15
5
2
989
3
1
0.127
3
1
0.006
1
343.15
5
2
1066
4
1
0.137
3
1
0.007
1
353.15
5
2
165
3
1
0.02
2
1
0.002
1
353.15
5
2
318
3
1
0.039
2
1
0.002
1
353.15
5
2
442
3
1
0.055
2
1
0.003
1
353.15
5
2
644
3
1
0.079
2
1
0.004
1
353.15
5
2
845
3
1
0.102
3
1
0.005
1
353.15
5
2
964
3
1
0.115
3
1
0.006
1
353.15
5
2
1047
4
1
0.126
3
1
0.006