Supercritical Fluid Flow Injection Method for Mapping Liquid—Vapor Critical Loci of Binary Mixtures Containing CO₂

Yttria stabilized zirconia synthesis in supercritical CO2: Understanding of particle formation mechanisms in CO2/co-solvent systems

“…(i) 0.88 mol fraction of CO 2 for the CO 2 /pentane mixture (T c ∼ 328 K and P c ∼ 8 MPa) and (ii) 0.78 mol fraction of CO 2 for the CO 2 /2-propanol mixture (T c ∼ 378 K and P c ∼ 13 MPa) using literature data. [15][16][17][18][19] Literature data for mixture critical temperatures are close to the experimental values observed with the transparent cell.…”

A novel EOS that combines van der Waals and Dieterici potentials

“…Solid lines: data predicted by Eq. 11; dotted lines: data predicted by the RK-Twu EOS; F: CH 4 (1)-n-C 10 H 22 (2): estimated from the data of Reamer et al (1942) and Rijkers et al (1992a); E: CH 4 (1)-n-C 12 H 26 (2): estimated from the data of Rijkers et al (1992b); OE: CH 4 (1)-n-C 14 H 30 (2): estimated from the data of De Leeuw (1992); ‚: CH 4 (1)-n-C 16 H 34 (2): estimated from the data of Rijkers et al (1993); : CH 4 (1)-n-C 20 H 42 (2): estimated from the data of Ziegler et al (1995).…”

“…In particular, the LLE critical lines from the second and up to sixth homologues almost co-include, a behavior that obviously cannot occur in any real series. In addition, for the Type I carbon dioxide-methanol system, the model predicts a wide range of absolute liquid-liquid immis- Solid lines: calculated data; dot-dot-dashed lines: vapor pressure lines of pure compounds; Ⅺ: CO 2 (1)-CH 3 OH(2): experimental data of Ziegler et al (1995); ƒ: CO 2 (1)-C 2 H 5 OH(2): experimental data of Ziegler et al (1995); ᭛: CO 2 (1)-2-C 3 H 7 OH(2): experimental data of Ziegler et al (1995); : CO 2 (1)-n-C 3 H 7 OH(2): experimental data of Ziegler et al (1995) and Lam et al (1990); ᭜: CO 2 (1)-2-C 4 H 9 OH(2): experimental data of Stevens et al (1997) and Silva-Oliver and Galicia-Luna (2001); OE: CO 2 (1)-n-C 4 H 9 OH(2): experimental data of Ziegler et al (1995) and Lam et al (1990); ‚: CO 2 (1)-n-C 5 H 11 OH(2): experimental data of Silva-Oliver et al (2002) and Raeissi et al (1998); F: CO 2 (1)-n-C 6 H 13 OH(2): experimental data of Scheidgen (1997); E: CO 2 (1)-n-C 8 H 17 OH(2): experimental data of Scheidgen (1997). Solid lines: data yielded by the Eq.…”

“…Solid lines: data yielded by the Eq. 11; dotted lines: data yielded by the RK-Twu EOS; dot-dot-dashed lines: vapor pressure lines of pure compounds; OE: CH 4 (1)-n-CO 2 (2): experimental data of Donnelly and Katz (1954); ‚: CO 2 (1)-n-C 2 H 6 (2): experimental data of Horstmann et al (2000); F: CO 2 (1)-n-C 3 H 8 (2): experimental data of Roof and Baron (1967); E: CO 2 (1)-n-C 4 H 10 (2): experimental data of Hsu et al (1985) and Leu and Robinson (1987); : CO 2 (1)-n-C 5 H 12 (2): experimental data of Cheng et al (1989); ƒ: CO 2 (1)-n-C 6 H 14 (2): experimental data of Ziegler et al (1995); f: CO 2 (1)-n-C 7 H 16 (2): experimental data of Chester and Haynes (1997); Ⅺ: CO 2 (1)-n-C 8 H 18 (2): experimental data of Ziegler et al (1995); ✚: CO 2 (1)-n-C 10 H 22 (2): experimental data of Chester and Haynes (1997).…”

The Road to Unified Chromatography: The Importance of Phase Behavior Knowledge in Supercritical Fluid Chromatography and Related Techniques, and a Look at Unification

“…This kind of plot unambiguously indicates the area (in pressure and temperature coordinates) where l-v phase separation will not occur (regardless of the ratio of components in the binary mixture) and the area where l-v separation is possible but dependent on the mixture composition. We later developed a simple peak-shape-sensitive flow-injection analysis technique to generate P-T projections of critical mixture curves (2)(3)(4). These projections, while not containing any composition information, are very helpful in parameter selection for SFC and related techniques.…”