Densities of Carbon Dioxide + Hydrogen Sulfide Mixtures from 220 K to 450 K at Pressures up to 25 MPa

• Published in: Journal of chemical and engineering data Vol. 46; no. 5; pp. 1309 - 1318
• Main Authors: Stouffer, Carl E., Kellerman, Scott J., Hall, Kenneth R., Holste, James C., Gammon, Bruce E., Marsh, Kenneth N.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Washington, DC American Chemical Society 13.09.2001
• Subjects: Chemical thermodynamics; Chemistry; Exact sciences and technology; General and physical chemistry; Mixtures; Thermodynamic properties; Sour gas; Hydrogen Sulfides; Gas mixture; Binary system; Carbon dioxide; Liquid phase; Experimental study; Density; Physical properties; Vapor phase; Virial coefficient; Thermodynamic properties; PVT relation
• ISSN: 0021-9568; 1520-5134
• DOI: 10.1021/je000182c

This paper reports ∼850 pVT measurements at temperatures between 220 K and 450 K at pressures up to 25 MPa for four gravimetrically prepared CO2 (1) + H2S (2) mixtures with x 1 = 0.5011, 0.7067, 0.9045, and 0.9393. The measurements utilized a Burnett isochoric technique designed to provide both vapor and liquid densities. A detailed error analysis indicates that the densities are accurate to better than 0.08% and 0.3% for the vapor and liquid phases, respectively. Mixture second and third virial coefficients derived from the measurements and correlations to represent them and 52 derived vapor−liquid saturation boundary conditions also are included.