Experimental and modelling study of the densities of the hydrogen sulphide + methane mixtures at 253, 273 and 293 K and pressures up to 30 MPa

Alfonso Gonzalez Perez (1) , Alain Valtz (1) , Christophe Coquelet (1) , Patrice Paricaud (2) , Antonin Chapoy (3, 1)

1 CTP - Centre Thermodynamique des Procédés
2 UCP - Unité de Chimie et Procédés
3 HWU - Heriot-Watt University [Edinburgh]

Densities of three binary mixtures of hydrogen sulphide and methane (xH 2 S + (1-x) CH 4), with mole fractions of 0.1315, 0.1803 and 0.2860 of acid gas, were determined experimentally at three temperatures (253, 273 and 293) K and at pressures up to 30 MPa. Densities were measured continuously using a high temperature and high pressure Vibrating Tube densitometer (VTD), Anton Paar DMA 512. The SAFT-VR Mie, PR and GERG2008 equations of state (EoS) are used to describe the experimental data with different levels of success.

Mots clés: CH4; H2S; Thermophysical properties; Acid gas injection

Domaines: Chimie théorique et/ou physique; Génie des procédés

Alfonso Gonzalez Perez, Alain Valtz, Christophe Coquelet, Patrice Paricaud, Antonin Chapoy. Experimental and modelling study of the densities of the hydrogen sulphide + methane mixtures at 253, 273 and 293 K and pressures up to 30 MPa. Fluid Phase Equilibria, 2016, 427, pp.371-383. ⟨10.1016/j.fluid.2016.08.002⟩. ⟨hal-01372274⟩