Vapour-liquid equilibrium data for the hydrogen sulphide (H2S) + carbon dioxide (CO2) system at temperatures from 258 to 313 K

被引：35
作者：
Chapoy, Antonin [1 ]
Coquelet, Christophe [2 ]
Liu, Haifan [1 ,2 ]
Valtz, Alain [2 ]
Tohidi, Bahman [1 ]
机构：
[1] Heriot Watt Univ, Inst Petr Engn, Flow Assurance & Phase Equilibria Grp, Edinburgh EH14 4AS, Midlothian, Scotland
[2] CTP, MINES ParisTech, F-77305 Fontainebleau, France
来源：
FLUID PHASE EQUILIBRIA | 2013年 / 356卷
关键词：
VLE data; Hydrogen sulphide; Carbon dioxide; Thermodynamic modelling; CARBON-DIOXIDE SYSTEM; EQUATION-OF-STATE; PHASE-EQUILIBRIA; CRITICAL-POINTS; PRESSURES; MIXTURES; MPA;
D O I：
10.1016/j.fluid.2013.07.050
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
From the design of acid injection scheme to the impact of hydrogen sulphide in CCS scheme, knowledge of the phase behaviour of the hydrogen sulphide + carbon dioxide is essential. In this communication, new isothermal vapour-liquid equilibrium measurements for the binary system H2S-CO2 have been conducted at 258.41 K, 273.15 K, 293.47 K and 313.02 K in the pressure range from 1.0 to 5.5 MPa. The experimental method used in this work is of the static-analytic type, taking advantage of two magnetic capillary samplers (RolSi (TM), Armines' Patent) developed in the CTP laboratory. This experimental method allows the sampling in both liquid and vapour phases and their analysis by GC. The data were obtained with uncertainties within +/- 0.02 K, +/- 0.002 MPa, and 0.006 for molar compositions. It is demonstrated that both the Peng-Robinson (PR) equation of state (classical or the P-PR78 version) or the Soave-Redlich-Kwong (SRK) equation of state combined with the classical mixing rule and appropriate binary interaction parameters were able to satisfactorily describe the phase behaviour of the H2S-CO2 binary systems. (C) 2013 Elsevier B.V. All rights reserved.
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页码：223 / 228
页数：6
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