Solubilities and diffusion coefficients of high boiling compounds in supercritical carbon dioxide

Correlation of Infinite-Dilution Diffusion Coefficients in Supercritical Fluids

“…As presented in Table 1, we collected the experimental data of infinite-dilution diffusion coefficients in supercritical fluids available in the literature, including 153 binary systems and 1968 data points, over the solvent reduced temperature range of 1.00-1.78, the solvent reduced density range of 0.21-2.34, the solute molar mass range of 58.08-885.40 g/mol, and the solute ambient-temperature density range of 0.63-2.04 g/cm 3 16 allylbenzene, 9 aniline, 17 benzaldehyde, 15 benzene, 13-15,18-24 benzoic acid, 5,16 benzyl acetate, 25 benzyl ether, 15 benzylacetone, 26 2-bromoanisole, 9 bromobenzene, 2,6 2-butanone, 15 (C4:0; C8:0; C10:0; C14:0; C16:0; C18:0; C22:0; C22:6 a ) ethyl ester, 27 (C14:1; C18:2; C20:1; C20:5; C22:1; C22:6 a ) methyl ester, 20,27,28 caffeine, 29,30 chlorobenzene, 2,6 chloroform, 15 chrysene, 13 cis-jasmone, 20 cycloheptanone, 31 cyclononanone, 31 cyclopentanone, 31 dibenzyl ether, 25 1,2-dichlorobenzene, 32 dichloromethane, 15 1,2-diethylbenzene, 33 1,4-diethylbenzene, 33 diethyl ether, 15,34 diisopropyl ether, 34 2,3-dimethylaniline, 35 2,6-dimethylaniline, 35 1,4-dioxane, 15 1,3-divinylbenzene, 9 ethyl acetate, 15,29 ethyl benzoate, 26 ethylbenzene, 15,19 2-ethyltoluene, 36 3-ethyltoluene, 36 4-ethyltoluene, 36 eugenol, 26 2-fluoroanisole, 9 fluorobenzene, 6 glycerol trioleate, 5 3-heptanone, 31 hexachlorobenzene, 37 indole, 20 iodobenzene, 2,6 isopropylbenzene, 15,19 limonene, 15,20 m-cresol, 22 m-xylene, 2,15 mesitylene, 2,13,15,17,18 2-methylanisole, 35 4-methylanisole, 35 n-butylbenzene, 7 n-decane, 14 n-dodecane, 14 n-heptane, 14 n-hexane, 14 n-nonane, 14 n-octane, 14 n-pentane, 14 n-pentylbenzene, 7 n-propylbenzene, 15,18,19 n-tetradecane, 14 n-undecane, 14 naphthalene, 5,13,20,24,30,37-41 2-nitroanisole, 32 nitrobenzene, 2 3-nitrotoluene, 35 5-nonanone, 31 o-xylene, 2,15 1-octene, 15 oleic acid, 5 p-xylene, 2,15 3-pentanone, 31 phenanthrene, 13,16,37 phenol, 29 2-phenyl-1-propanol, 8 3-phenyl-1-propanol, …”

“…[1][2][3][4][5] Although experimental and theoretical publications on diffusion in supercritical fluids abound, the quantitative knowledge of infinite-dilution diffusion coefficients in supercritical fluids and the ability to predict them is still in its relative infancy.…”

“…[1][2][3][4][5] In general, such experimental apparatus is relatively expensive and the experimental procedure is always time-consuming and difficult to measure with high precision. Therefore, more than 20 famous equations have been proposed to estimate the infinite-dilution diffusion coefficients in supercritical fluids, [6][7][8][9] which can be roughly classified into two groups: Stokes-Einstein type and rough-hard-sphere type.…”

Bioseparation of Nutraceuticals Using Supercritical Carbon Dioxide

“…Furthermore, solubility data as well as correlations for numerous less volatile substances and high boiling substances can be found (Bartle et al 1991;Higashi et al 2001). An excellent collection of solubility data for more than 780 solutes including liquids, solids, polymers, foods, drugs, nutraceuticals, dyes, pesticides, and metal complexes has been compiled by Gupta and Shim (2007).…”

Mathematical-thermodynamic solubility model developed by the application of discrete Volterra functional series theory

“…Supercritical fluids, in particular supercritical carbon dioxide (SC-CO 2 ) have attracted considerable attentions in recent years [1,2] and extensively used and applied in chemical and petroleum [3][4][5], pharmaceutical [6][7][8][9][10][11][12][13], food, biotechnology, biomedical, nuclear, material, and polymer processing [3] industries due to unique physical and chemical properties such as low cost, nontoxicity, non-flammability, easy recycle, and no environmental hazards [14][15][16][17].…”