Simultaneous vapor-liquid-liquid equilibria and phase molar densities of a quaternary system of propane + pentane + octane + water

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je9600616· OSTI ID:367839

Barrufet, M A; Liu, K; Rahman, S; Wu, C ^[1]

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1. Texas A and M Univ., College Station, TX (United States). Dept. of Petroleum Engineering

This paper presents a new procedure to measure simultaneously equilibrium phase compositions and phase densities of multicomponent fluid mixtures. This is accomplished using a uniquely designed pressure/volume/temperature-vapor/liquid/liquid equilibrium apparatus (PVT-VLLE) connected to a modified sampling system for gas chromatographic analysis (GC) at high pressures and temperatures. The data reported in this paper include (1) three-phase equilibrium compositions and pressures of hexane + water and (2) three-phase equilibrium compositions and phase molar densities for a quaternary system of propane + pentane + octane + water. The equilibrium compositions and three-phase equilibrium pressures for hexane and water compare well with the published data of Tsonopolous and Wilson, which are considered as a calibration test to validate the procedure. Thus the authors conclude that this methodology is suitable for determining volumetric and phase equilibria properties of multiphase systems.

• DOE Contract Number: FG03-93ER14357
• OSTI ID: 367839
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 4 Vol. 41; ISSN JCEAAX; ISSN 0021-9568
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
40 CHEMISTRY
AQUEOUS SOLUTIONS
DENSITY
ENHANCED RECOVERY
EQUATIONS OF STATE
EQUILIBRIUM
EXPERIMENTAL DATA
HEXANE
MEASURING METHODS
OCTANE
PENTANE
PETROLEUM
PETROLEUM INDUSTRY
PHASE STUDIES
PROPANE
SEPARATION PROCESSES
STEAM INJECTION
THERMODYNAMIC PROPERTIES