Pseudocritical

The pseudocritical molar volume of a mixture is obtained by weighting the... [Pg.112]

The pseudocritical compressibility factor is obtained directly from the i acentric factor using the expression ... [Pg.113]

The pseudocritical pressure is calculated as a function of other constants ... [Pg.113]

P = saturation pressure for the petroleum fraction at T P = pseudocritical pressure for the petroleum fraction... [Pg.140]

When the critical constants for a pure substance or the pseudocritical constants for a petroleum fraction are known, the vapor pressure for hydrocarbons and petroleum fractions can be calculated using the Lee and Kesler equations ... [Pg.158]

Reduced Equations of State. A simple modification to the cubic van der Waals equation, developed in 1946 (72), uses a term called the ideal or pseudocritical volume, to avoid the uncertainty in the measurement of volume at the critical point. [Pg.240]

For hydrocarbon and nonpolar gas mixtures, the Pitzer pure component method can be used to predict vapor density by replacing the true critical properties with pseudocritical properties defined in... [Pg.402]

No specific mixing rules have been tested for predicting compressibility factors for denned organie mixtures. However, the Lydersen method using pseudocritical properties as defined in Eqs. (2-80), (2-81), and (2-82) in place of true critical properties will give a reasonable estimate of the compressibihty faclor and hence the vapor density. [Pg.402]

Propagating stall, 237 Proximity sensors, 350 Proximity transducers, 350 Pseudocriticals, 20 Psychrometric chart, 20,... [Pg.549]

Compound Mole Fraction Critical Press. (atm) Critical Temp. ( R) Pseudocritical Press. Pseudocritical Temp. ... [Pg.500]

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