Fluid Phase Equilibria, Vol.383, 94-99, 2014
Phase equilibrium data for the hydrogen sulphide plus methane system at Cross Mark temperatures from 186 to 313 K and pressures up to about 14 MPa
Isothermal vapour-liquid equilibrium data have been measured for the methane-hydrogen sulphide (CH4+ H2S) binary system at five temperatures from 186.25 to 313.08 K, and pressures between 0.043 and 13.182 MPa. The experimental method used in this work is of the static-analytic type, taking advantage of two pneumatic capillary samplers (Rolsi (TM), Armines' patent) developed in the CTP laboratory. The data were obtained with the following maximum expanded uncertainties (k = 2): u(T) = 0.06 K, u(P) = 0.006 MPa and the maximum uncertainty for compositions u(x, y) = 0.010 for molar compositions. The data have been satisfactorily represented with the classical Peng and Robinson equation of state. (C) 2014 Elsevier B.V. All rights reserved.