Abstract
Isothermal vapour–liquid equilibrium data have been measured for the methane–hydrogen sulphide (CH4+H2S) binary system at five temperatures from 186.25 to 313.08K, and pressures between 0.043 and 13.182MPa. The experimental method used in this work is of the static–analytic type, taking advantage of two pneumatic capillary samplers (Rolsi™, Armines’ patent) developed in the CTP laboratory. The data were obtained with the following maximum expanded uncertainties (k=2): u(T)=0.06K, u(P)=0.006MPa 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.
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