TY - JOUR
T1 - Vapor-liquid equilibrium data for the nitrogen + n-octane system from (344.5 to 543.5) K and at pressures up to 50 MPa
AU - Eliosa-Jiménez, Gaudencio
AU - García-Sánchez, Fernando
AU - Silva-Oliver, Guadalupe
AU - Macías-Salinas, Ricardo
N1 - Funding Information:
This work was supported by the Molecular Engineering Research Program of the Mexican Petroleum Institute under projects D.00406 and I.00432. Eliosa-Jiménez gratefully acknowledges the National Council for Science and Technology of Mexico (CONACYT) for the financial support received through a PhD fellowship (192773).
PY - 2009/8/15
Y1 - 2009/8/15
N2 - A static-analytical apparatus with visual sapphire windows and pneumatic capillary samplers has been used to obtain new vapor-liquid equilibrium data for the N2 + n-octane system over the temperature range from (344.5 to 543.5) K and at pressures up to 50 MPa. Equilibrium phase compositions and vapor-liquid equilibrium ratios are reported. The new results were compared with solubility data reported by other authors. The comparison showed that the solubility data reported in this work at 344.5 K are in good agreement with those determined by others at 344.3 K. The experimental data were modeled with the PR and PC-SAFT equations of state by using one-fluid mixing rules and a single temperature-independent interaction parameter. Results from the modeling effort showed that the PC-SAFT equation was superior to the PR equation in correlating the experimental data of the N2 + n-octane system.
AB - A static-analytical apparatus with visual sapphire windows and pneumatic capillary samplers has been used to obtain new vapor-liquid equilibrium data for the N2 + n-octane system over the temperature range from (344.5 to 543.5) K and at pressures up to 50 MPa. Equilibrium phase compositions and vapor-liquid equilibrium ratios are reported. The new results were compared with solubility data reported by other authors. The comparison showed that the solubility data reported in this work at 344.5 K are in good agreement with those determined by others at 344.3 K. The experimental data were modeled with the PR and PC-SAFT equations of state by using one-fluid mixing rules and a single temperature-independent interaction parameter. Results from the modeling effort showed that the PC-SAFT equation was superior to the PR equation in correlating the experimental data of the N2 + n-octane system.
KW - Critical point
KW - Enhanced oil recovery
KW - Equation of state
KW - Phase envelope
KW - Stability analysis
KW - Vapor-liquid equilibria
UR - http://www.scopus.com/inward/record.url?scp=67349141259&partnerID=8YFLogxK
U2 - 10.1016/j.fluid.2009.04.015
DO - 10.1016/j.fluid.2009.04.015
M3 - Artículo
SN - 0378-3812
VL - 282
SP - 3
EP - 10
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
IS - 1
ER -