TY - JOUR
T1 - Experimental vapor-liquid equilibrium for the quaternary carbon dioxide + ethanol + thiophene + pentane/nonane systems
AU - Serrano-Cocoletzi, Verónica
AU - Galicia-Luna, Luis A.
AU - Elizalde-Solis, Octavio
PY - 2011
Y1 - 2011
N2 - In this study, experimental vapor-liquid equilibrium (VLE) behavior for two quaternary carbon dioxide + ethanol + thiophene + (pentane or nonane) systems was measured by means of a static-analytic apparatus with online sampling. The VLE data was obtained at (∼334.2 and ∼363.8) K. Carbon dioxide + ethanol was used as a solvent + cosolvent mixture prepared in a solute-free basis of 0.033 mass fraction ethanol. The solute mixture, constituted by the sulfur compound + linear alkane, was used to determine the feasibility to extract the sulfur compound in the studied range. Standard uncertainties (u) for the measured properties are estimated to be p ± 0.02 MPa, T ± 0.04 K, and x1 ± 0.0028, y1 ± 0.0015 mole fraction for these last two values. According to the results, the vapor phase is enriched with pentane compared with the sulfur compound. On the other hand, high separation factors for thiophene over nonane are obtained at low pressures.
AB - In this study, experimental vapor-liquid equilibrium (VLE) behavior for two quaternary carbon dioxide + ethanol + thiophene + (pentane or nonane) systems was measured by means of a static-analytic apparatus with online sampling. The VLE data was obtained at (∼334.2 and ∼363.8) K. Carbon dioxide + ethanol was used as a solvent + cosolvent mixture prepared in a solute-free basis of 0.033 mass fraction ethanol. The solute mixture, constituted by the sulfur compound + linear alkane, was used to determine the feasibility to extract the sulfur compound in the studied range. Standard uncertainties (u) for the measured properties are estimated to be p ± 0.02 MPa, T ± 0.04 K, and x1 ± 0.0028, y1 ± 0.0015 mole fraction for these last two values. According to the results, the vapor phase is enriched with pentane compared with the sulfur compound. On the other hand, high separation factors for thiophene over nonane are obtained at low pressures.
UR - http://www.scopus.com/inward/record.url?scp=84867638313&partnerID=8YFLogxK
U2 - 10.1021/je300831t
DO - 10.1021/je300831t
M3 - Artículo
SN - 0021-9568
VL - 57
SP - 2896
EP - 2901
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
IS - 10
ER -