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Vapour-liquid equilibrium in the krypton-xenon system

โœ Scribed by Jorge C.G. Calado; Elaine Chang; William B. Streett

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
676 KB
Volume
117
Category
Article
ISSN
0378-4371

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โœฆ Synopsis

Isothermal vapour-liquid data were measured for the krypton-xenon system at ten temperatures between 165 and 270K and pressures to 6.7 MPa, using a vapour recirculating technique. The mixture critical line has been located in (P, T, x) space. Barker's method of data reduction has been used to test the thermodynamic consistency of isotherms below the critical temperature of krypton (209.4 K) and the excess Gibbs energy was evaluated, at the same temperatures, as a function of composition. The results of the experiments have been compared with predictions of the Peng-Robinson equation of state. With interaction parameter calculated by fitting the isotherm of 200.64K, this equation predicts the liquid and vapour phase compositions to within about a few mole per cent over most of the experimental range.

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