TY - JOUR
T1 - Experimental Procedure for Measuring Solid-Liquid-Gas Equilibrium in Carbon Dioxide + Solute
AU - Verónico-Sánchez, Francisco J.
AU - Elizalde-Solis, Octavio
AU - Zúñiga-Moreno, Abel
AU - Camacho-Camacho, Luis E.
AU - Bouchot, Christian
N1 - Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/10/13
Y1 - 2016/10/13
N2 - The aim of this work is to report an experimental procedure for measuring solid-liquid-gas phase equilibrium behavior for binary systems constituted by carbon dioxide + solute. Our proposed measuring procedure depends on solid formation detection from fluid phases by a pressure change. The experimental apparatus uses a stainless steel cell where windows are not required. The mixture is slowly cooled while temperature and pressure are decreasing at isochoric conditions. Therefore, the solid-liquid-gas phase equilibrium data are considered when pressure exhibits an abrupt increase while temperature is still decreasing. The studied solutes are lauric acid, myristic acid, palmitic acid, and stearic acid. Besides, additional solid-liquid-gas equilibrium data are included for the same systems using an apparatus recently reported by our working group which is based on the enhanced first freezing point technique. Experimental results are represented using the Peng-Robinson equation of state coupled to the van der Waals one-fluid mixing rules with two adjustable parameters.
AB - The aim of this work is to report an experimental procedure for measuring solid-liquid-gas phase equilibrium behavior for binary systems constituted by carbon dioxide + solute. Our proposed measuring procedure depends on solid formation detection from fluid phases by a pressure change. The experimental apparatus uses a stainless steel cell where windows are not required. The mixture is slowly cooled while temperature and pressure are decreasing at isochoric conditions. Therefore, the solid-liquid-gas phase equilibrium data are considered when pressure exhibits an abrupt increase while temperature is still decreasing. The studied solutes are lauric acid, myristic acid, palmitic acid, and stearic acid. Besides, additional solid-liquid-gas equilibrium data are included for the same systems using an apparatus recently reported by our working group which is based on the enhanced first freezing point technique. Experimental results are represented using the Peng-Robinson equation of state coupled to the van der Waals one-fluid mixing rules with two adjustable parameters.
UR - http://www.scopus.com/inward/record.url?scp=84991633795&partnerID=8YFLogxK
U2 - 10.1021/acs.jced.6b00348
DO - 10.1021/acs.jced.6b00348
M3 - Artículo
SN - 0021-9568
VL - 61
SP - 3448
EP - 3456
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
IS - 10
ER -