Modified Redlich-Kwong

Compilation of binary experimental data reduced with the Wilson equation and, for high pressures, with a modified Redlich-Kwong equation. [Pg.9]

Soave, G. (1972), Equilibrium constants from a modified Redlich-Kwong equation of state . Chem. Eng. Sci., Vol. 27, p. 1197. [Pg.459]

To illustrate this thermodynamic consistency test, Figs. 15, 16, and 17 show plots of the appropriate functions needed to calculate Areas I, II, and III, respectively, for the nitrogen-carbon dioxide system at 0°C the data are taken from Muirbrook (M5). Fugacity coffiecients were calculated with the modified Redlich-Kwong equation (R4). [Pg.181]

Kerrick D. M. and Jacobs G. K. (1982). A modified Redlich-Kwong equation for H2O, CO2 and H2O-CO2 mixtures at elevated pressures and temperatures. Amer. Jour Set, 281 735-767. [Pg.839]

Corresponding states have been used in other equations. For example, the Peng-Robinson equation is a modified Redlich-Kwong equation formulated to better correlate vapor—liquid equilibrium (VLE) vapor pressure data. This equation, however, is not useful in reduced form because it is specifically designed to calculate accurate pressure data. Reduced equations generally presuppose knowledge of the pressure. [Pg.240]

The mass flows and purities obtained by experiments in a pilot plant with a height of 4 m were used as a basis. By applying a modified Redlich-Kwong equation of state (1.21. the heat and mass balances were calculated for the new plant, which contains an extractor with an inner diameter of 7 cm and a height of 6.5 m. [Pg.500]

Soave s Modified Redlich-Kwong Equation of State... [Pg.2747]

Wilson, G.M. Vapor-liquid equilibria correlated by means of a modified Redlich-Kwong equation of state. Adv. Cryog. Eng. 1964, 9, 168-176. [Pg.2751]

Fuller, G. G., 1976. A modified Redlich-Kwong-Soave equation of state capable of repre.sent-ing the liquid state. Ind. Eng. Chem. Fund, 15 254—257. [Pg.200]

Fugacity coefficients are important in considering the boiling of hydrothermal fluids, and have been approached from the virial equation as well as from numerous modifications of the van der Waals equation, the best known of these being the (modified) Redlich-Kwong equation. However, they are of minor importance in most environmental situations, and are routinely assumed to be 1.0, so that the activity of gaseous solution components is equal to the partial pressure (Equation (3.14)). [Pg.41]

G. Soave Equilibrium Constants from a Modified Redlich-Kwong Equation of State, Chem. Eng. Sri., 27(6) 1197 (1971). [Pg.562]

Vapor-Liquid Equilibria, Correlation by Means of a Modified Redlich-Kwong Equa-... [Pg.562]

I shall refer to Equation 49 as the modified Redlich-Kwong (MRK) equation. As seen from Table 1, the MRK equation yields a very accurate value for zQ. Furthermore, the MRK equation of state of methyl chloride, listed in Table III, is in excellent agreement with experiment. Clearly, using an accurate expression for P0 in place of the (V — Nb) 1 term leads to a dramatic improvement in the equation of state. [Pg.25]

MRK = modified Redlich-Kwong equation MSA = mean spherical approximation N = Ni, total number of molecules... [Pg.36]

Simonet, R. Behar, E. A Modified Redlich-Kwong Equation of State for... [Pg.78]

In the original RK equation, the parameters a and b were constants, independent of P and T. Since the RK equation first appeared in print, it too has undergone many modifications in an attempt to further improve its fit. Many of these modified Redlich-Kwong equations are summarized by Holloway (1977) and Kerrick and Jacobs (1981), and involve writing the a and b parameters as a function of T, P, or both T and P. The MRK equation of Kerrick and Jacobs fits most of the data for H2O and CO2 at elevated P and T to better than 1 % and is chosen for discussion here. [Pg.403]

Flowers, G., 1979, Correction of Holloway s (1977) adaption of the modified Redlich-Kwong equation of state for calculation of the fugacities of molecular species in supercritical fluids of geologic interest Contrib. Mineral. Petrol., v. 69, pp. 315-318. [Pg.574]

VAPOR-LIQUID EQUILIBRIA, CORRELATION BY MEANS OF A MODIFIED REDLICH-KWONG EQUATION OF STATE... [Pg.168]

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