Simple correlations for UNIQUAC structure parameters

Abstract

Ind. Eng. Chem. Process Des. Dev. 1902, 21 I 367-370 367 Baddov. R. F.; Brain, P. L. T.; Logeah, B. A.; Eymery, J. P. Chem . Eng . Scl. Blrd, R. B.; Stewart, W. E.; Lightfoot, E. N. "Transport Phenomena"; Wiley: Emery, J. P. Sc.D. Thesls, M.I.T. Cambridge, MA, 1964. Fletcher, R.; Reeves, C. M. -ut. This paper has been presented at 2nd World Congress of Chemical Engineering held at Montreal, Canada, Oct 4-9,1981. The authors are thankful to the Plant Management for extending all facilities. Thanks are also due to M. Sriram for his careful reading and helpful remarks.

Vapor–Liquid Equilibrium for the 1,1,1-Trifluorotrichloroethane + Sulfuryl Chloride System at 101.3 kPa

“…The physical properties of pure components used in the Wilson and UNIQUAC models are listed in Table 4. 20 The data correlation was performed using ASPEN plus V7.1. In the data reduction process, the Britt and Luecke 21 algorithm based on the maximum likelihood principle was adopted to minimize the following objective function:…”

“…The value of α ij in the NRTL model was fixed at 0.3. The physical properties of pure components used in the Wilson and UNIQUAC models are listed in Table . The data correlation was performed using ASPEN plus V7.1.…”

Thermodynamic modeling of vapor–liquid equilibrium of binary systems ionic liquid+supercritical {CO2 or CHF3} and ionic liquid+hydrocarbons using Peng–Robinson equation of state

“…Traditionally, the method developed by Bondi (1964) is very popular, but the increments reported are only valid for groups bonded to carbon, as pointed out by the author. Brelvi (1982) had suggested simple correlations for r and q as functions of critical volume and radius of gyration of the molecule. However, this method is not applicable for molecules with unknown critical volume or radius of gyration, such as the ionic liquids.…”