Vapor-liquid equilibria in the system hydrogen-nitrogen-carbon monoxide
Eubanks, L. Stanley
Doctor of Philosophy
Vapor-liquid equilibrium compositions for the system hydrogen-nitrogen-carbon monoxide were determined at -310°F, and -280°F and -240°F from 300 psig to the critical. PVT data for hydrogen were fitted to the Benedict-Webb-Rubin equation of state and vapor-liquid equilibria predicted by the equation of state were compared to the experimental data. The equation of state predicted the K-values for nitrogen and carbon monoxide with an accuracy of about 5% while the hydrogen K-values were predicted with an accuracy of about 15%. The hydrogen-nitrogen-carbon monoxide binary data were also correlated by the Margule equation. A method for predicting K-values at infinite dilution in a ternary system is proposed. With the proposed method the binary data and a limited amount of ternary data permit the prediction of K-values at infinite dilution with an accuracy of about 10%.