Note where the line crosses the methane axis.Connect the points with a straight line.On the right-hand vertical axis, locate and mark the point containing the temperature 60вЏ.On the left-hand vertical axis, locate and mark the point containing the pressure 100 psia. K (or DePriester) Chart (high T range) in American Engineering Units from Introduction to Chemical Engineering Thermodynamics (7th ed) by Smith, J.M., Van Ness, H.C., and Abbott, M.M.Example ДЇor example, to find the K value of methane at 100 psia and 60В вЏ. Many DePriester charts have been printed for simple hydrocarbons.

In effect, it indicates the ease or difficulty of using distillation to separate the more volatile components from the less volatile components in a mixture. This quantity is widely used in designing large industrial distillation processes. 'K' values, representing the tendency of a given chemical species to partition itself preferentially between liquid and vapor phases, are plotted in between. Relative volatility is a measure comparing the vapor pressures of the components in a liquid mixture of chemicals. These nomograms have two vertical coordinates, one for pressure, and another for temperature. DePriester in an article in Chemical Engineering Progress in 1953. However, the question arises as to which. The methods presented were the GPA correlations and charts, RaoultвЂ™s law, WilsonвЂ™s correlation, EoS approaches, activity coefficient models and JMC Charts and Tables. I provided the DePriester chart for more information of the K-value. A clear and detailed solution for this please. See the answer See the answer done loading. DePriester Charts provide an efficient method to find the vapor-liquid equilibrium ratios for different substances at different conditions of pressure and temperature. In the previous Tip of the Month, we presented several methods for estimating Kvalues. This problem has been solved See the answer.

Depriester chart