Solubility of H2S and CO2 in diethylene glycol at elevated pressures

The solubility of hydrogen sulfide (H2S) and carbon dioxide (CO2) in diethy lene glycol (DEG) has been determined at temperatures in the range 298-398 K at pressures up to 7.5 MPa (for H2S) or 20 MPa (for CO2). The experimenta l results were correlated by the Peng-Robinson equation of state, and inter action parameters have been obtained for these systems. The parameters in t he Krichevsky-Ilinskaya equation were calculated from these interaction par ameters. The vapor-phase compositions predicted by the equation of state ha ve been compared with published data. (C) 2000 Elsevier Science B.V. All ri ghts reserved.