Equipment using a ''static-analytic" method for solubility measurements in potentially hazardous binary mixtures under cryogenic temperatures - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Cryogenics Année : 2010

Equipment using a ''static-analytic" method for solubility measurements in potentially hazardous binary mixtures under cryogenic temperatures

(1) , (2) , (2) , (1)
1
2

Résumé

A new apparatus designed to study, at cryogenic temperatures, thermodynamic equilibria of potentially explosive binary systems such as hydrocarbon-oxygen mixtures is described herein. This equipment has an equilibrium cell which was especially designed to minimize hazards while allowing accurate phase equilibrium measurements. Reliability of results, obtained with this equipment has been verified by working on the nitrogen-propane system, for which data are already available in literature, over a large range of compositions and at various temperatures. Four isothermal curves describing liquid phase com- positions at 109.98, 113.77, 119.75 and 125.63 K have been determined. Our experimental data are rep- resented within 2% in compositions and in pressures through the Peng-Robinson equation of state implying Mathias-Copeman alpha function and Huron-Vidal mixing rule. Comparisons to literature allow pointing out: good agreement is observed with Kremer and Knapp data (1983) while the three sets of Poon and Lu data (1974) presenting systematic positive deviation are consequently judged as suspicious.
Fichier non déposé

Dates et versions

hal-00574057 , version 1 (07-03-2011)

Identifiants

Citer

Deborah Houssin-Agbomson, Christophe Coquelet, Dominique Richon, Philippe Arpentinier. Equipment using a ''static-analytic" method for solubility measurements in potentially hazardous binary mixtures under cryogenic temperatures. Cryogenics, 2010, 50 (4), pp.248-256. ⟨10.1016/j.cryogenics.2010.01.014⟩. ⟨hal-00574057⟩
96 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More