Three-phase liquid-liquid-vapor equilibria in the methane + n-hexane + nitrogen and methane + n-pentane + nitrogen systems

Merrill, R.; Luks, Kraemer D.; Kohn, James P.

doi:10.1021/je00037a013

Cited by 18 publications

(20 citation statements)

References 7 publications

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“…It is bounded from above by a K-point locus; from below by a LCST locus and at low temperatures by a Q-point locus. The systems methane + n-butane + nitrogen (Merrill et al, 1984a) and methane + n-pentane + nitrogen (Merrill et al, 1984b) belong to this class.…”

Section: Thermodynamics and Topography Of The Phase Behavior Of Lng Smentioning

confidence: 99%

“…In this context, the system carbon dioxide + nitrogen + n-nonadecane exhibits immiscibility in the carbon dioxide + nnonadecane binary pair (Fall et al, 1985), so that its three-phase region is similar to that exhibited by the system nitrogen + methane + n-pentane (Merrill et al, 1984b). Therefore, the LLV region is "triangular" and is bounded from above by a K-point locus (L-L=V), at low temperatures by a Q-point locus (S-L-L-V), and, from a position of the Q-point locus to a position on the K-point space, by a binary carbon dioxide + n-nonadecane LLV locus.…”

Section: The Carbon Dioxide + Nitrogen + N-nonadecane Systemmentioning

confidence: 99%

See 1 more Smart Citation

Phase Behavior Prediction and Modeling of LNG Systems with EoSs - What is Easy and What is Difficult?

García-Flores¹,

Justo-García²,

Stateva³

et al. 2012

Advances in Natural Gas Technology

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Section: Thermodynamics and Topography Of The Phase Behavior Of Lng Smentioning

confidence: 99%

Section: The Carbon Dioxide + Nitrogen + N-nonadecane Systemmentioning

confidence: 99%

Phase Behavior Prediction and Modeling of LNG Systems with EoSs - What is Easy and What is Difficult?

García-Flores¹,

Justo-García²,

Stateva³

et al. 2012

Advances in Natural Gas Technology

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“…Raw data from which Tables I and I1 were constructed are presented in Tables I I I-VI. Many workers studied the emf (2), enthalpy of mlxlng (3,4), and visible spectra (5, 6) of molten cobalt chloride and the mixtures with alkali chlorides. Introduction I n the mixture of cobalt chloride and alkali chloride systems, the volatility of CoCI, was appreciable even at the melting points ( 7 ) .…”

Section: Appendix Amentioning

confidence: 99%

Three-phase liquid-liquid-vapor equilibria in the binary systems nitrogen + ethane and nitrogen + propane

Llave¹,

Luks²,

Kohn³

1985

J. Chem. Eng. Data

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The phase equllibria behavior of the binary mixtures nitrogen + ethane and nitrogen + propane Is studied along their three-phase liquid-liquid-vapor loci at temperatures greater than 117 K. Data presented are pressure, and L, and L, Ilquld-phase compositions and molar volumes as a function of temperature. Comparisons with literature data are made. IntroductlonWe have undertaken an extensive study of liquid-liquid-vapor (L,-L,-V) phenomena in well-defined ternary prototype systems of liquefied natural gas (LNG) (7-6). Many of these ternary systems have exhibited L-L-V immiscibility without having an immiscible constituent binary pair. An example would be the system methane + ethane + n-octane (7), whose three-phase thermodynamic phase space is bounded by loci of K points [L,-L, = V), LCST points (L, = L,-V), and Q points (S-L,-L,-V).By comparison, the systems methane + n-hexane + n-octane (3) and methane + n-hexane + nitrogen ( 5 ) had a constituent binary pair, methane + n-hexane, which exhibited L-Density measurements of the molten CoC1,-KCI mixtures of hlgh CoCI, composith wlth an open vessel are very dlfflcult or aknost ImpOedMe because of their hlgh volatility. The densities of CoCl, and KCI mixtures sealed In a quartz cell have been measured by a dllatometrlc method. The excess molar volume was posltlve around 30 mol % and around 70 mol % of CoC4. The results of the present lnvestlgatlon suggested that the tltle system contains the tetrahedral conttguration, CoC1,2-, at the composition X(CoC1,) = 0.30 and the other unknown species at X(CoC1,) = 0.70.

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“…However, it is difficult to use these equations to predict correctly the complex phase behavior of (N 2 + crude oil) systems due to a lack of experimental phase equilibrium information of (N 2 + hydrocarbon) systems over wide ranges of temperature and pressure. In fact, most of the information on this subject refers to binary (N 2 + hydrocarbon) systems and only a few (N 2 + hydrocarbon) data are reported for ternary [10,15,32,[51][52][53][54][55], quaternary [32,56], and multicomponent [57] systems. Nevertheless, as pointed out by Grausø et al [9], many of the binary (N 2 + hydrocarbon) (vapor + liquid) equilibrium data reported in the literature are generally not internally consistent and mutually conflicting; i.e., there is a great deal of scatter among the experimental points.…”

Section: Introductionmentioning

confidence: 99%

High-pressure (vapor+liquid) equilibria in the (nitrogen+n-heptane) system

García-Sánchez

Eliosa-Jiménez

Silva-Oliver

et al. 2007

The Journal of Chemical Thermodynamics

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Three-phase liquid-liquid-vapor equilibria in the methane + n-hexane + nitrogen and methane + n-pentane + nitrogen systems

Cited by 18 publications

References 7 publications

Phase Behavior Prediction and Modeling of LNG Systems with EoSs - What is Easy and What is Difficult?

Phase Behavior Prediction and Modeling of LNG Systems with EoSs - What is Easy and What is Difficult?

Three-phase liquid-liquid-vapor equilibria in the binary systems nitrogen + ethane and nitrogen + propane

High-pressure (vapor+liquid) equilibria in the (nitrogen+n-heptane) system

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