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High-pressure vapor-liquid equilibria in the ternary nitrogen + dimethyl ether + methanol system and Henry constant calculation for nitrogen

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Teodorescu M., Persson O., Rasmussen P.

Editorial: Proceeding Physical Chemistry, Biochemical and Chemical Engineering of the 12th Romanian International Conference on Chemistry and Chemical Engineering, RICCCE 12, September 13-15, Bucharest, Romania, p.1-6, 2001.

Rezumat:

In the present work new experimental VLE data (P, T, x, y) are reported for the ternary nitrogen (1) + dimethyl ether (2) + methanol (3) system at 40 and 15 0C. The system has not been previously studied. The experimental data are presented by comparison with those predicted by means of the SRK equation of state with MHV2 mixing rule combined with modified UNIFAC or UNIQUAC models. In order to see if an ideal behavior of the ternary system is valid for the Henry’s constants, Henry’s constant calculations for nitrogen have been performed in the two constituent binary subsystems (nitrogen (1) + dimethyl ether (2) and nitrogen (1) + methanol (3)) and in the ternary system under study.

Cuvinte cheie: vapor-liquid equilibria, gas solubility, high pressures, experiment, modeling, methanol, dimethyl ether, nitrogen, Henry constant