CIESC Journal ›› 2019, Vol. 70 ›› Issue (7): 2439-2447.DOI: 10.11949/0438-1157.20190080
• Thermodynamics • Previous Articles Next Articles
Rui YANG1(),Li DONG2,Songsong CHEN2,Weiguo CHENG2(),Junya CAO1()
Received:
2019-01-25
Revised:
2019-04-16
Online:
2019-07-05
Published:
2019-07-05
Contact:
Weiguo CHENG,Junya CAO
通讯作者:
成卫国,曹俊雅
作者简介:
杨瑞(1993—),男,硕士研究生,<email>yr1364122@163.com</email>
基金资助:
CLC Number:
Rui YANG, Li DONG, Songsong CHEN, Weiguo CHENG, Junya CAO. Vapor-liquid equilibrium of ethylene in low viscous dicyanamide-based ionic liquids[J]. CIESC Journal, 2019, 70(7): 2439-2447.
杨瑞, 董丽, 陈嵩嵩, 成卫国, 曹俊雅. 低黏二氰胺类离子液体乙烯汽液相平衡研究[J]. 化工学报, 2019, 70(7): 2439-2447.
样品 | A/(g | B | R2 |
---|---|---|---|
[Emim][DCN] | 1.38784 | -6.6 | 0.99998 |
[Bmim][DCN] | 1.24988 | -6.2 | 0.99968 |
[Hemim][DCN] | 1.38923 | -6.7 | 0.99995 |
Table 1 Constants for density of Eq. (7)
样品 | A/(g | B | R2 |
---|---|---|---|
[Emim][DCN] | 1.38784 | -6.6 | 0.99998 |
[Bmim][DCN] | 1.24988 | -6.2 | 0.99968 |
[Hemim][DCN] | 1.38923 | -6.7 | 0.99995 |
样品 | D/(mPa | C/K | T0/K | R2 |
---|---|---|---|---|
[Emim][DCN] | 0.1408 | 725.5 | 137.9 | 0.996508 |
[Bmim][DCN] | 0.3392 | 486.3 | 187.3 | 0.996941 |
[Hemim][DCN] | 0.1992 | 614.4 | 185.4 | 0.992966 |
Table 2 Constants for viscosity of Eq. (8)
样品 | D/(mPa | C/K | T0/K | R2 |
---|---|---|---|---|
[Emim][DCN] | 0.1408 | 725.5 | 137.9 | 0.996508 |
[Bmim][DCN] | 0.3392 | 486.3 | 187.3 | 0.996941 |
[Hemim][DCN] | 0.1992 | 614.4 | 185.4 | 0.992966 |
温度/K | 密度①/(g·cm-1) | 相对偏差/% | 黏度②/(mPa?s) | 相对偏差/% | ||
---|---|---|---|---|---|---|
实验值 | 文献值 | 实验值 | 文献值 | |||
293.15 | 1.068682 | 1.06396 | 0.44 | 33.562 | 33.15 | -1.24 |
303.15 | 1.062988 | 1.05757 | 0.51 | 22.574 | 22.92 | 1.51 |
313.15 | 1.056648 | 1.05112 | 0.53 | 16.235 | 16.72 | 2.90 |
323.15 | 1.050358 | 1.04494 | 0.52 | 12.273 | 12.74 | 3.67 |
333.15 | 1.044137 | 1.03873 | 0.52 | 9.519 | 10.04 | 5.19 |
Table 3 Comparison of measured density and viscosity of [Bmim][DCN] with its literature data
温度/K | 密度①/(g·cm-1) | 相对偏差/% | 黏度②/(mPa?s) | 相对偏差/% | ||
---|---|---|---|---|---|---|
实验值 | 文献值 | 实验值 | 文献值 | |||
293.15 | 1.068682 | 1.06396 | 0.44 | 33.562 | 33.15 | -1.24 |
303.15 | 1.062988 | 1.05757 | 0.51 | 22.574 | 22.92 | 1.51 |
313.15 | 1.056648 | 1.05112 | 0.53 | 16.235 | 16.72 | 2.90 |
323.15 | 1.050358 | 1.04494 | 0.52 | 12.273 | 12.74 | 3.67 |
333.15 | 1.044137 | 1.03873 | 0.52 | 9.519 | 10.04 | 5.19 |
T/K | p/kPa | x1 | φ1V | γ1 |
---|---|---|---|---|
C2H4+[Emim][DCN] | ||||
303.15 | 265.28 | 0.0182 | 0.984 | 0.989 |
303.15 | 407.47 | 0.0272 | 0.975 | 1.007 |
303.15 | 613.45 | 0.0424 | 0.96 | 0.96 |
303.15 | 1016.93 | 0.0666 | 0.939 | 0.988 |
303.15 | 1353.59 | 0.0856 | 0.919 | 1.001 |
313.15 | 297.67 | 0.0167 | 0.983 | 1.097 |
313.15 | 563.65 | 0.0318 | 0.969 | 1.078 |
313.15 | 931.95 | 0.0533 | 0.949 | 1.041 |
313.15 | 1219.53 | 0.0668 | 0.933 | 1.069 |
313.15 | 1446.23 | 0.0831 | 0.921 | 1.007 |
323.15 | 325.18 | 0.0160 | 0.984 | 1.192 |
323.15 | 551.82 | 0.0279 | 0.972 | 1.144 |
323.15 | 832.69 | 0.0403 | 0.958 | 1.176 |
323.15 | 1216.45 | 0.0616 | 0.939 | 1.103 |
323.15 | 1431.95 | 0.0767 | 0.929 | 1.031 |
333.15 | 402.39 | 0.0185 | 0.981 | 1.12 |
333.15 | 740.07 | 0.0338 | 0.966 | 1.11 |
333.15 | 942.78 | 0.0442 | 0.957 | 1.072 |
333.15 | 1312.68 | 0.0622 | 0.94 | 1.043 |
333.15 | 1557.77 | 0.0733 | 0.93 | 1.038 |
C2H4+[Bmim][DCN] | ||||
303.15 | 253.80 | 0.0208 | 0.984 | 1.043 |
303.15 | 466.68 | 0.0373 | 0.972 | 1.057 |
303.15 | 684.74 | 0.0537 | 0.958 | 1.061 |
303.15 | 907.81 | 0.0724 | 0.945 | 1.03 |
303.15 | 1109.56 | 0.0891 | 0.933 | 1.01 |
313.15 | 228.67 | 0.0172 | 0.986 | 1.082 |
313.15 | 512.98 | 0.0381 | 0.975 | 1.083 |
313.15 | 748.98 | 0.0558 | 0.963 | 1.066 |
313.15 | 940.58 | 0.0686 | 0.951 | 1.075 |
313.15 | 1160.98 | 0.0855 | 0.94 | 1.052 |
323.15 | 363.27 | 0.0222 | 0.983 | 1.175 |
323.15 | 659.11 | 0.0466 | 0.967 | 1.079 |
323.15 | 961.330 | 0.0683 | 0.952 | 1.058 |
323.15 | 1080.60 | 0.0772 | 0.946 | 1.046 |
323.15 | 1338.41 | 0.0963 | 0.933 | 1.024 |
333.15 | 353.08 | 0.0210 | 0.984 | 1.248 |
333.15 | 580.35 | 0.0384 | 0.973 | 1.111 |
333.15 | 813.26 | 0.0542 | 0.963 | 1.089 |
333.15 | 1053.51 | 0.0720 | 0.952 | 1.051 |
333.15 | 1217.06 | 0.0810 | 0.945 | 1.071 |
C2H4+[Hemim][DCN] | ||||
303.15 | 395.17 | 0.0285 | 0.976 | 1.051 |
303.15 | 551.66 | 0.0386 | 0.966 | 1.068 |
303.15 | 766.63 | 0.0535 | 0.954 | 1.062 |
303.15 | 952.33 | 0.0669 | 0.943 | 1.042 |
303.15 | 1306.31 | 0.0918 | 0.922 | 1.019 |
313.15 | 379.32 | 0.0223 | 0.979 | 1.137 |
313.15 | 557.07 | 0.0327 | 0.969 | 1.126 |
313.15 | 707.14 | 0.0433 | 0.961 | 1.07 |
313.15 | 953.86 | 0.0585 | 0.948 | 1.058 |
313.15 | 1173.65 | 0.0714 | 0.936 | 1.05 |
323.15 | 380.56 | 0.0212 | 0.981 | 1.11 |
323.15 | 539.47 | 0.0291 | 0.973 | 1.14 |
323.15 | 746.96 | 0.0423 | 0.963 | 1.072 |
323.15 | 969.73 | 0.5055 | 0.952 | 1.05 |
323.15 | 1161.48 | 0.0659 | 0.943 | 1.049 |
333.15 | 367.57 | 0.0181 | 0.983 | 1.181 |
333.15 | 589.29 | 0.0311 | 0.973 | 1.093 |
333.15 | 804.135 | 0.0426 | 0.964 | 1.078 |
333.15 | 967.27 | 0.0519 | 0.956 | 1.056 |
333.15 | 1155.61 | 0.0615 | 0.948 | 1.053 |
Table 4 Solubility, φ1Vand γ1 of C2H4 in three ionic liquids at different pressures and temperatures
T/K | p/kPa | x1 | φ1V | γ1 |
---|---|---|---|---|
C2H4+[Emim][DCN] | ||||
303.15 | 265.28 | 0.0182 | 0.984 | 0.989 |
303.15 | 407.47 | 0.0272 | 0.975 | 1.007 |
303.15 | 613.45 | 0.0424 | 0.96 | 0.96 |
303.15 | 1016.93 | 0.0666 | 0.939 | 0.988 |
303.15 | 1353.59 | 0.0856 | 0.919 | 1.001 |
313.15 | 297.67 | 0.0167 | 0.983 | 1.097 |
313.15 | 563.65 | 0.0318 | 0.969 | 1.078 |
313.15 | 931.95 | 0.0533 | 0.949 | 1.041 |
313.15 | 1219.53 | 0.0668 | 0.933 | 1.069 |
313.15 | 1446.23 | 0.0831 | 0.921 | 1.007 |
323.15 | 325.18 | 0.0160 | 0.984 | 1.192 |
323.15 | 551.82 | 0.0279 | 0.972 | 1.144 |
323.15 | 832.69 | 0.0403 | 0.958 | 1.176 |
323.15 | 1216.45 | 0.0616 | 0.939 | 1.103 |
323.15 | 1431.95 | 0.0767 | 0.929 | 1.031 |
333.15 | 402.39 | 0.0185 | 0.981 | 1.12 |
333.15 | 740.07 | 0.0338 | 0.966 | 1.11 |
333.15 | 942.78 | 0.0442 | 0.957 | 1.072 |
333.15 | 1312.68 | 0.0622 | 0.94 | 1.043 |
333.15 | 1557.77 | 0.0733 | 0.93 | 1.038 |
C2H4+[Bmim][DCN] | ||||
303.15 | 253.80 | 0.0208 | 0.984 | 1.043 |
303.15 | 466.68 | 0.0373 | 0.972 | 1.057 |
303.15 | 684.74 | 0.0537 | 0.958 | 1.061 |
303.15 | 907.81 | 0.0724 | 0.945 | 1.03 |
303.15 | 1109.56 | 0.0891 | 0.933 | 1.01 |
313.15 | 228.67 | 0.0172 | 0.986 | 1.082 |
313.15 | 512.98 | 0.0381 | 0.975 | 1.083 |
313.15 | 748.98 | 0.0558 | 0.963 | 1.066 |
313.15 | 940.58 | 0.0686 | 0.951 | 1.075 |
313.15 | 1160.98 | 0.0855 | 0.94 | 1.052 |
323.15 | 363.27 | 0.0222 | 0.983 | 1.175 |
323.15 | 659.11 | 0.0466 | 0.967 | 1.079 |
323.15 | 961.330 | 0.0683 | 0.952 | 1.058 |
323.15 | 1080.60 | 0.0772 | 0.946 | 1.046 |
323.15 | 1338.41 | 0.0963 | 0.933 | 1.024 |
333.15 | 353.08 | 0.0210 | 0.984 | 1.248 |
333.15 | 580.35 | 0.0384 | 0.973 | 1.111 |
333.15 | 813.26 | 0.0542 | 0.963 | 1.089 |
333.15 | 1053.51 | 0.0720 | 0.952 | 1.051 |
333.15 | 1217.06 | 0.0810 | 0.945 | 1.071 |
C2H4+[Hemim][DCN] | ||||
303.15 | 395.17 | 0.0285 | 0.976 | 1.051 |
303.15 | 551.66 | 0.0386 | 0.966 | 1.068 |
303.15 | 766.63 | 0.0535 | 0.954 | 1.062 |
303.15 | 952.33 | 0.0669 | 0.943 | 1.042 |
303.15 | 1306.31 | 0.0918 | 0.922 | 1.019 |
313.15 | 379.32 | 0.0223 | 0.979 | 1.137 |
313.15 | 557.07 | 0.0327 | 0.969 | 1.126 |
313.15 | 707.14 | 0.0433 | 0.961 | 1.07 |
313.15 | 953.86 | 0.0585 | 0.948 | 1.058 |
313.15 | 1173.65 | 0.0714 | 0.936 | 1.05 |
323.15 | 380.56 | 0.0212 | 0.981 | 1.11 |
323.15 | 539.47 | 0.0291 | 0.973 | 1.14 |
323.15 | 746.96 | 0.0423 | 0.963 | 1.072 |
323.15 | 969.73 | 0.5055 | 0.952 | 1.05 |
323.15 | 1161.48 | 0.0659 | 0.943 | 1.049 |
333.15 | 367.57 | 0.0181 | 0.983 | 1.181 |
333.15 | 589.29 | 0.0311 | 0.973 | 1.093 |
333.15 | 804.135 | 0.0426 | 0.964 | 1.078 |
333.15 | 967.27 | 0.0519 | 0.956 | 1.056 |
333.15 | 1155.61 | 0.0615 | 0.948 | 1.053 |
系统(i)+(S) | aiS | biS |
---|---|---|
C2H4+[Emim][DCN] | 0.0457 | 0.0087 |
C2H4+[Bmim][DCN] | 1.0177 | 0.0047 |
C2H4+[Hemim][DCN] | -0.1276 | 0.0089 |
Table 5 Parameters of Henry constants in this work
系统(i)+(S) | aiS | biS |
---|---|---|
C2H4+[Emim][DCN] | 0.0457 | 0.0087 |
C2H4+[Bmim][DCN] | 1.0177 | 0.0047 |
C2H4+[Hemim][DCN] | -0.1276 | 0.0089 |
系统(1)+(2) | α | τ12(0) | τ12(1) | τ21(0) | τ21(1) | ARD/% |
---|---|---|---|---|---|---|
C2H4+[Emim][DCN] | 0.449 | 105.874 | -9.789 | 1.183 | -356.459 | 2.47 |
C2H4+[Bmim][DCN] | 0.313 | 130.173 | -9.717 | 0.877 | -252.221 | 2.54 |
C2H4+[Hemim][DCN] | 0.086 | 89.4897 | -10.064 | 84.413 | 299.8386 | 1.19 |
Table 6 Parameters of NRTL model in this work
系统(1)+(2) | α | τ12(0) | τ12(1) | τ21(0) | τ21(1) | ARD/% |
---|---|---|---|---|---|---|
C2H4+[Emim][DCN] | 0.449 | 105.874 | -9.789 | 1.183 | -356.459 | 2.47 |
C2H4+[Bmim][DCN] | 0.313 | 130.173 | -9.717 | 0.877 | -252.221 | 2.54 |
C2H4+[Hemim][DCN] | 0.086 | 89.4897 | -10.064 | 84.413 | 299.8386 | 1.19 |
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