Experimental Measurements of Vapor–Liquid Equilibria of the H2O + CO2 + CH4 Ternary System

Junfeng Qin; Robert J. Rosenbauer; Zhenhao Duan

doi:10.1021/je700473e

May 16, 2008Journal of Chemical & Engineering Data

Experimental Measurements of Vapor–Liquid Equilibria of the H2O + CO2 + CH4 Ternary System

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Key Points

To measure the vapor–liquid equilibria of the water + carbon dioxide + methane ternary system under high-temperature and high-pressure conditions and evaluate standard binary prediction models.
Conducted experimental phase equilibrium measurements at temperatures spanning 324 K to 375 K.
Tested the ternary mixture across elevated pressures ranging from 10 MPa to 50 MPa.
Compared measured phase concentrations against predictions interpolated from binary Henry’s law constants.
CH4 solubility in the ternary mixture is approximately 10% to 40% higher than values calculated by interpolation from binary H2O + CH4 Henry’s law constants.
CO2 solubility in the ternary mixture is roughly 6% to 20% higher than predictions derived by interpolation from binary H2O + CO2 Henry’s law constants.

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Implication

Experimental study demonstrates enhanced solubility of methane and carbon dioxide in a ternary aqueous system, suggesting non-ideal synergistic interactions under high pressure.

Abstract

Reported are the experimental measurements on vapor–liquid equilibria in the H 2 O + CO 2 + CH 4 ternary system at temperatures from (324 to 375) K and pressures from (10 to 50) MPa. The results indicate that the CH 4 solubility in the ternary mixture is about 10 % to 40 % more than that calculated by interpolation from the Henry’s law constants of the binary system, H 2 O + CH 4, and the solubility of CO 2 is 6 % to 20 % more than what is calculated by the interpolation from the Henry’s law constants of the binary mixture, H 2 O + CO 2 .

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Qin et al. (2008) studied this question.

synapsesocial.com/papers/6a95a7f949c3b950564bcc50 https://doi.org/10.1021/je700473e

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Experimental Measurements of Vapor–Liquid Equilibria of the H2O + CO2 + CH4 Ternary System

Key Points

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Implication

Abstract

Discussion

Cite This Study

Experimental Measurements of Vapor–Liquid Equilibria of the H2O + CO2 + CH4 Ternary System

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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