Phase Equilibrium of Three Binary Mixtures Containing NO and Components Present in Ambient Air

Fan Zhang (1) , Elise El Ahmar (1) , Alain Valtz (1) , Eric Boonaert (1) , Christophe Coquelet (1) , Antonin Chapoy (2)

1 CTP - Centre Thermodynamique des Procédés
2 HWU - Heriot-Watt University [Edinburgh]

Air contains impurities, which must be removed before its transformation and utilization. In the present work, new isothermal Vapor-Liquid Equilibrium (VLE) data are reported for three binary systems containing NO with (CO, N 2 or Ar) at different temperatures (between 105 and 146 K) and pressures up to 4 MPa. The compositions of the coexisting phases were experimentally determined using an apparatus based on the " static-analytic " method. The Peng-Robinson Equation of State combined with different mixing rules (classical, Wong-Sandler and Huron-Vidal) were used to represent the phase diagram (P, x, y).

Mots clés: thermodynamic models; low temperature; Vapor-Liquid Equilibrium; phase behavior; measurements

Domaines: Génie des procédés; Génie chimique

Fan Zhang, Elise El Ahmar, Alain Valtz, Eric Boonaert, Christophe Coquelet, et al.. Phase Equilibrium of Three Binary Mixtures Containing NO and Components Present in Ambient Air. Journal of Chemical and Engineering Data, 2018, 63 (4), pp.1021-1026. ⟨10.1021/acs.jced.7b00782⟩. ⟨hal-01797971⟩