Abstract

The solubility of hydrogen sulfide (H 2S) and carbon dioxide (CO 2) in diethylene glycol (DEG) has been determined at temperatures in the range 298–398 K at pressures up to 7.5 MPa (for H 2S) or 20 MPa (for CO 2). The experimental results were correlated by the Peng–Robinson equation of state, and interaction parameters have been obtained for these systems. The parameters in the Krichevsky–Ilinskaya equation were calculated from these interaction parameters. The vapor-phase compositions predicted by the equation of state have been compared with published data.

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