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Solubility of Sulfur Dioxide in Aqueous Solutions of Acetic Acid, Sodium Acetate, and Ammonium Acetate in the Temperature Range from 313 to 393 K at Pressures up to 3.3 MPa: Experimental Results and Comparison with Correlations/Predictions

1999; American Chemical Society; Volume: 38; Issue: 3 Linguagem: Inglês

10.1021/ie980529t

1520-5045

Jianzhong Xia, Bernd Rumpf, Gerd Maurer,

Chemical Looping and Thermochemical Processes

New experimental results for the solubility of sulfur dioxide in aqueous solutions of single solutes acetic acid, sodium acetate and ammonium acetate at temperatures from 313 to 393 K and total pressures up to 3.3 MPa are reported. Similar to the system sulfur dioxide−water, also in such systems with acetic acid and sodium or ammonium acetate a second (sulfur dioxide rich) liquid phase is observed at high sulfur dioxide concentrations. A model to describe the phase equilibrium is presented and calculated (i.e., predicted as well as correlated) phase equilibria are compared to the new experimental data.