Read this K-value off the chart (approximately 21.3). 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 60☏. This calculator essentially acts as a DePrieseter chart, calculating the vapor-liquid equilibrium ratio (ie K-Value) for a variety of compounds at a particular.On the left-hand vertical axis, locate and mark the point containing the pressure 100 psia.Example įor example, to find the K value of methane at 100 psia and 60 ☏. Many DePriester charts have been printed for simple hydrocarbons. "K" values, representing the tendency of a given chemical species to partition itself preferentially between liquid and vapor phases, are plotted in between. English: K-Values for systems of light hydrocarbons, high temperature range.DePriester Chart.P, find Tbp (i.e., K 1).The force givén by the reIationship to the quántity has a diréction. These nomograms have two vertical coordinates, one for pressure, and another for temperature. DePriester in an article in Chemical Engineering Progress in 1953. DePriester Charts provide an efficient method to find the vapor-liquid equilibrium ratios for different substances at different conditions of pressure and temperature.
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