High-pressure phase equilibria of binary and ternary mixtures containing the methyl-substituted butanols

Measurement and modeling of high-pressure (vapour+liquid) equilibria of (CO2+alcohol) binary systems

“…Compared with experimental results for the liquid phase from this work, data points from Vázquez da Silva and Barbosa [14] and Lopes et al [18] presented negative differences <13%. For the data points from Lee et al [17] and Inomata et al [16], the differences were positive and <17%. At T = 333 K Inomata et al [16] found values for mole fractions of the liquid phase with negative differences <14% in respect to this study.…”

“…For the (CO 2 + ethanol) binary system, experimental high-pressure (vapour + liquid) equilibria (VLE) data have been extensively reported at temperatures from (283 to 373) K and pressure range of (0.5 to 14.3) MPa by several authors [2,[6][7][8][9]. Experimental information selected from the literature for the high-pressure VLE of the four systems measured in this contribution: (CO 2 + 1-propanol) [6,[10][11][12][13], (CO 2 + 2-methyl-1-propanol) [14][15][16], (CO 2 + 3-methyl-1-butanol) [14,[16][17][18], and (CO 2 + 1-pentanol) [19][20][21][22] is summarized in table 1.…”

Measurement and modeling of high-pressure (vapor+liquid) equilibria of (CO2+alkanol) binary systems

“…Mole fractions of the liquid phase listed in table 2 for the (CO 2 + 3-methyl-2-butanol) system at T = 313 K were compared qualitatively with the results of Lee et al [10] and from figure 2 it can be seen that they show good agreement. For the vapor phase, the mole fraction reported by Lee et al [10] were >0.99% of CO 2 for all the pressure range studied by these authors (2 to 8.22) MPa, this composition is comparable only for the higher pressure…”

“…For the (CO 2 + ethanol) binary system experimental high-pressure (vapor + liquid) equilibria (VLE) data have been extensively reported at temperatures from (283 to 373) K and pressure range of (0.5 to 14.3) MPa by several authors [2,[6][7][8][9]. However, little information of the systems studied in this work was available in the literature, selected experimental information for high-pressure VLE of the three systems measured in this contribution: (CO 2 + 3-methyl-2-butanol) [10], (CO 2 + 2-pentanol) [11,12], and (CO 2 + 3-pentanol) [13], is summarized in table 1.…”

“…Critical temperatures and pressures (T c , p c ) and acentric factor (x) of the substances used in the experimental measurements[10,13,21,22].…”