Vapor−Liquid Equilibrium for Tetrahydrothiophene + n-Butane, + trans-2-Butene, + 2-Methylpropane, and + 2-Methylpropene

Abstract

Isothermal vapor-liquid equilibrium of binary systems of tetrahydrothiophene + n-butane, + trans-2-butene, + 2-methylpropane, and + 2-methylpropene was measured at (318 and 346) K or 347 K with a static total pressure apparatus. The measured data were reduced to phase equilibrium data with the Barker's method. Legendre, Wilson, NRTL, and UNIQUAC parameters were calculated. All binaries exhibited a positive deviation from the Raoult's Law. No azeotropes were observed.

Vapor−Liquid Equilibrium for Dimethyl Disulfide + Butane, +trans-But-2-ene, + 2-Methylpropane, + 2-Methylpropene, + Ethanol, and 2-Ethoxy-2-methylpropane

“…Uncertainty in the reduced data depended on the uncertainty in the measured values of the temperature, the pressure, and the overall molar composition. Maximum theoretical error of the overall molar composition was calculated by the method presented by Hynynen et al Maximum uncertainty of the reduced data was obtained by alternating the measurement uncertainties between their minimum and maximum values, one at a time, and calculating the average deviation of the results. , …”

“…Maximum theoretical error of the overall molar composition was calculated by the method presented by Hynynen et al 16 Maximum uncertainty of the reduced data was obtained by alternating the measurement uncertainties between their minimum and maximum values, one at a time, and calculating the average deviation of the results. 17,18 ' RESULTS AND DISCUSSION…”

Vapor−Liquid Equilibrium for Thiophene + Butane, +trans-But-2-ene, + 2-Methylpropane, and + 2-Methylpropene

“…Uncertainties of the equilibrium cell measurements are as follows: the uncertainty in the reduced data depended on the uncertainty in the measured values of the temperature, the pressure, and the overall molar composition. The maximum theoretical error of the overall molar composition was calculated by the method presented by Hynynen et al Maximum uncertainty of the reduced data was obtained by alternating the measurement uncertainties between their minimum and maximum values, one at a time, and calculating the average deviation of the results. , …”