CIESC Journal ›› 2020, Vol. 71 ›› Issue (11): 5052-5058.DOI: 10.11949/0438-1157.20200884
• Celebration Column for School of Chemistry and Chemical Engineering, Nanjing University • Previous Articles Next Articles
Xiaoqing YANG1,2(),Quanfei LIAO1,2,Yun YI1,2,Chunliang YANG1,2,Tianxiang ZHAO1,2(),Xingbang HU3,Fei LIU1,2
Received:
2020-07-03
Revised:
2020-08-16
Online:
2020-11-05
Published:
2020-11-05
Contact:
Tianxiang ZHAO
杨小青1,2(),廖泉飞1,2,易芸1,2,杨春亮1,2,赵天翔1,2(),胡兴邦3,刘飞1,2
通讯作者:
赵天翔
作者简介:
杨小青(1996—),女,硕士研究生,基金资助:
CLC Number:
Xiaoqing YANG,Quanfei LIAO,Yun YI,Chunliang YANG,Tianxiang ZHAO,Xingbang HU,Fei LIU. Study on performance and mechanism of triethylene glycol dimethyl ether for capturing low concentration SO2[J]. CIESC Journal, 2020, 71(11): 5052-5058.
杨小青,廖泉飞,易芸,杨春亮,赵天翔,胡兴邦,刘飞. 三乙二醇二甲醚吸收低浓度SO2性能及机理研究[J]. 化工学报, 2020, 71(11): 5052-5058.
T/K | |||
---|---|---|---|
293.15 | 6.83 | 16.5 | 134 |
12.95 | 30.2 | 246 | |
18.05 | 40.8 | 333 | |
22.44 | 52.0 | 425 | |
31.31 | 70.7 | 577 | |
35.55 | 79.5 | 649 | |
45.19 | 101.9 | 832 | |
298.15 | 8.87 | 25.5 | 208 |
12.90 | 36.6 | 298 | |
17.85 | 49.7 | 406 | |
22.95 | 63.1 | 515 | |
29.12 | 80.6 | 658 | |
33.00 | 92.5 | 755 | |
37.59 | 106.3 | 867 | |
303.15 | 1.91 | 13.6 | 111 |
3.11 | 18.5 | 151 | |
6.42 | 31.2 | 254 | |
10.56 | 48.3 | 395 | |
14.90 | 63.8 | 521 | |
17.70 | 75.7 | 618 | |
25.77 | 105.0 | 857 | |
308.15 | 2.74 | 13.1 | 107 |
5.07 | 25.8 | 210 | |
7.14 | 36.2 | 295 | |
10.25 | 50.7 | 414 | |
14.23 | 70.5 | 576 | |
16.30 | 80.0 | 653 | |
21.37 | 106.1 | 866 | |
313.15 | 1.45 | 10.9 | 89 |
4.50 | 33.1 | 270 | |
7.14 | 49.3 | 403 | |
8.38 | 58.1 | 474 | |
10.82 | 71.2 | 581 | |
13.87 | 92.5 | 755 | |
15.06 | 100.2 | 818 |
Table 1 Gas-liquid equilibrium data for dilute SO2 in triethylene glycol dimethyl ether at different temperature
T/K | |||
---|---|---|---|
293.15 | 6.83 | 16.5 | 134 |
12.95 | 30.2 | 246 | |
18.05 | 40.8 | 333 | |
22.44 | 52.0 | 425 | |
31.31 | 70.7 | 577 | |
35.55 | 79.5 | 649 | |
45.19 | 101.9 | 832 | |
298.15 | 8.87 | 25.5 | 208 |
12.90 | 36.6 | 298 | |
17.85 | 49.7 | 406 | |
22.95 | 63.1 | 515 | |
29.12 | 80.6 | 658 | |
33.00 | 92.5 | 755 | |
37.59 | 106.3 | 867 | |
303.15 | 1.91 | 13.6 | 111 |
3.11 | 18.5 | 151 | |
6.42 | 31.2 | 254 | |
10.56 | 48.3 | 395 | |
14.90 | 63.8 | 521 | |
17.70 | 75.7 | 618 | |
25.77 | 105.0 | 857 | |
308.15 | 2.74 | 13.1 | 107 |
5.07 | 25.8 | 210 | |
7.14 | 36.2 | 295 | |
10.25 | 50.7 | 414 | |
14.23 | 70.5 | 576 | |
16.30 | 80.0 | 653 | |
21.37 | 106.1 | 866 | |
313.15 | 1.45 | 10.9 | 89 |
4.50 | 33.1 | 270 | |
7.14 | 49.3 | 403 | |
8.38 | 58.1 | 474 | |
10.82 | 71.2 | 581 | |
13.87 | 92.5 | 755 | |
15.06 | 100.2 | 818 |
T/K | Hx/ (Pa·m3·mol-1) | ΔH/ (kJ·mol-1) | ΔS/ (J·mol-1·K-1) | ΔG/ (kJ·mol-1) |
---|---|---|---|---|
293.15 | 2.22 ± 0.05 | -37.16 | -74.08 | -15.45 |
298.15 | 2.80 ± 0.03 | -15.08 | ||
303.15 | 3.84 ± 0.04 | -14.71 | ||
308.15 | 4.96 ± 0.07 | -14.34 | ||
313.15 | 6.47 ± 0.10 | -13.97 |
Table 2 Henry’s law constants, absorption enthalpy changes and entropy, and Gibbs free energy changes of dilute SO2 in triethylene glycol dimethyl ether
T/K | Hx/ (Pa·m3·mol-1) | ΔH/ (kJ·mol-1) | ΔS/ (J·mol-1·K-1) | ΔG/ (kJ·mol-1) |
---|---|---|---|---|
293.15 | 2.22 ± 0.05 | -37.16 | -74.08 | -15.45 |
298.15 | 2.80 ± 0.03 | -15.08 | ||
303.15 | 3.84 ± 0.04 | -14.71 | ||
308.15 | 4.96 ± 0.07 | -14.34 | ||
313.15 | 6.47 ± 0.10 | -13.97 |
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