Solubility of Nitrous Oxide in Amine Aqueous Solutions - Scientific ...

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Solubility of N 2 O in Water (Pa.m 3 .mol -1 ) T/K Ref. 4 Ref. 5 Ref. 6 Ref. 7 Ref. 11 Ref. 12 Ref. 13 Ref. 17 Ref. 20 Ref. 21 This work 278 2 026 283 2 433 288 2 992 2 897 3 172 2 887 291.2 3 344 292 3 484 292.9 3 333 2 589.9 293 3 482 3 425 3 321 3 506 3 694 3 306 298 4 169 4 132 3 911 4 176 3 982 4 101 4 179 4 314 3 821 298.6 3 774 3 809.8 303 4 950 4 350 4 408 4 406 4 315 306 4 900 4 982 4 975 308 5 284 5 263 4 710 4 899 312.9 5 917 4 249.6 313 6 061 5 020 6 339 5 725 5 900 5 541 318 6 993 4 689.3 6 243 322.6 7 143 5 166.6 322.9 7 407 323 5 371 7 254.2 7 214 7 260 7 264 7 007 328 7837 333 9 105 8 737 338 9 708 340 10 309 343 10 754 348 12 348 11 878 353 12 821 11 220 13 083 355.4 14 085 4
From Figure 2, it is seen that the measured solubilities of N 2 O in water are in good agreement with the values reported by Al-Ghawas et al [7] over the temperature range (15-40) o C, and with the values reported by Versteeg et al [6] over the temperature range (45-80) o C. Figure 2. Comparison between literature values on solubility of N 2 O in water and experimental values of this work. 3.2 Solubility of N 2 O in pure amines Experimental solubility data for N 2 O in pure MEA, DEA, and DIPA was determined over the temperature range (20-60) o C by the above-mentioned method. The experimental values for each of the amines have been correlated as a quadratic function of temperature using 2 H = a + bT cT (4.) N 2 O ,Amine + Where H N2O, a min e is the Henry’s constant in Pa.m 3 .mol -1 and T the absolute temperature. Parameters a, b, and c for the three pure amines (MEA, DEA, and DIPA) were calculated and tabulated in Table 2. The average regression deviations, for temperatures between 20 and 60 °C, between the calculated solubilities of N 2 O in pure amines and experimental data is
Page 1 and 2: Volume 2, Issue 1, 2008 Solubility
Page 3: experiment. The syringe is then con
Page 7 and 8: solvent A and water, respectively.
Page 9 and 10: For the MEA + H 2 O system, the exp
Page 11 and 12: Figure 6. Calculated solubility of
Page 13 and 14: 4. Conclusions The solubility of ni

Solubility of Nitrous Oxide in Amine Aqueous Solutions - Scientific ...

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