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 + CO2have 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 (RolsiTM, Armines' Patent) developed in the CTP laboratory. This experimentalmethod 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 theSoave-Redlich-Kwong (SRK) equation of state combined with the classical mixing rule and appropriatebinary interaction parameters were able to satisfactorily describe the phase behaviour of the H2S + CO2 binary systems.
Compounds
#
Formula
Name
1
CO2
carbon dioxide
2
H2S
hydrogen sulfide
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.