Vapor–liquid equilibria for supercritical carbon dioxide+butanol systems at 313.2K

High-pressure vapor-liquid equilibrium measurement for the binary mixtures of carbon dioxide+n-butanol

“…3 shows the comparison of our experimental VLE data at 313.15 K with literature data at similar temperatures that were already reported by Ishihara et al [4] (at 313.15 K), Hiaki et al [5] (at 313.2 K) and Jennings et al [6] (at 314.8 K) for the CO 2 (1)+n-butanol (2) binary system. As can be seen in this figure, our experimental data agreed well with the literature data and, especially, the literature data reported by Ishihara et al [4] (at 313.15 K) and Hiaki et al [5] (at 313.2 K) almost coincided with our data. However, Jennings et al's data [6] (at 314.8 K) showed a little bit The unit of A 12 and A 21 is kJ/g-mol …”

“…To develop such a new process, a knowledge of the solubility of high boiling components at elevated pressures and temperatures near the critical temperature of the solvents is essential. However, very few data have been reported in the literature [4][5][6][7][8]. The extents of prior VLE measurements of this system were (323.15, 333.14, 343.15) K for the data from Ishihara et al [4] and Hiaki et al [5], (313.…”

“…However, very few data have been reported in the literature [4][5][6][7][8]. The extents of prior VLE measurements of this system were (323.15, 333.14, 343.15) K for the data from Ishihara et al [4] and Hiaki et al [5], (313. 15, 323.15, 333.15, 343.15) K for Jennings et al's data [6].…”

Prediction of High‐Pressure Phase Equilibria using Cubic EOS: What Can Be Learned?

“…VLE of carbon dioxide-n-alkanols at the temperatures, which are typical for supercritical extraction processes. Black solid lines: VLE and LLE predicted by PSRK at 315 K for the system with n-propanol, 314.8 K for n-butanol and 314.6 K for n-pentanol; gray dotted lines: the same VLE predicted by C4EOS with k 12 = 0.08 and l 12 = -0.02; +: experimental VLE data of Yaginuma et al (1998) at 313.15 K; : experimental VLE data of Vandana and Teja (1995) at 315 K; ٗ: experimental VLE data of Suzuki et al (1990) at 313.4 K; ᭺: experimental VLE data of Jennings et al (1991) at 314.8 K; ᭹: experimental VLE data of Ishihara et al (1996) at 313.15 K; ⊕ experimental VLE data of Hiaki et al (1998) at 313.2 K; ᭡: experimental VLE data of Jennings et al (1992) at 314.6 K; ∆: experimental VLE data of Staby and Mollerup (1993) at 313.2 K. critical lines in both the P-T and P-x projections (Figures 5 and 6). This demonstrates the potential of C4EOS to be reliably employed in high-temperature regions where no experimental data for the systems under consideration are available.…”

Solubility of Carbon Dioxide in Secondary Butyl Alcohol at High Pressures: Experimental and Modeling with CPA

“…Because of the interest in the phase behavior of the components involved, the solubility of carbon dioxide in secondary butyl alcohol has been determined previously by other researchers [ 2 – 7 ]. However, some of these studies are limited to only one or two specific temperatures.…”