Ts. Brown et al., VAPOR-LIQUID-EQUILIBRIA FOR THE TERNARY-SYSTEM N-2-C4H10 AT 250 AND 270 K(CO2+N), International journal of thermophysics, 15(6), 1994, pp. 1211-1219
The system studied was nitrogen + carbon dioxide + n-butane at 250 and
270 K and at pressures from 1.5 to 14 MPa. The Peng-Robinson equation
was used to model the results, since it is the most widely accepted e
quation of state in the gas processing industry. In general, the predi
ctions are most accurate at low and moderate pressures and poorest at
high pressures, especially near the critical region.