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The use of computers provides capability to examine a useful array of variables that is invaluable in selecting optimum or at least preferred modes or conditions of operation. The flash drum operates at a pressure of 100 kPa and a temperature of 20 C. Interpolation between charts of convergence pressure can be calculated, depending on how close the operating pres- sure is to the convergence pressure. The DePriester charts have been fit to the following equation (McWilliams. The DePriester charts 80 check this quite well (see Figures 8-4A and B, and Figure 8-3D). The more straightforward, uncomplicated systems are being predicted with excellent accuracy. For n-pentane at convergence pressure of 3,000 psia (nearest chart) the K-value reads 0.19. Present design techniques using computer programs allow excellent prediction of performance for complicated multicomponent systems such as azeotropic or high hydrogen hydrocarbon as well as extremely high purity of one or more product streams. NU-22 - 120 condensing / 40 evaporator approx. This chapter discusses the performance of distillation process. Pressure Temperature Chart 800.497.6805 making your life easier COIL TEMPERATURE CHART INSTRUCTIONS Select design temperature for your evaporator and condenser-Match to approx. of pure n-pentane (35C from DePriester chart, K C5 1.0 ) Bottoms is boiling n-hexane (67C) Conversions: 35C 95F - distillate & Feed and 67C 152. Although the art and science of distillation has been practiced for many years, studies continue to determine the best design procedures for multicomponent, azeotropic, batch, multidraw, multifeed, and other types. 62 From overall balance QR DHD Bh B FhF QC Distillate is vapor at b.p. 234 psig head / 60 psig suction Hot Shot - 100° condensing / 28° evaporator approx. NU-22 - 120° condensing / 40° evaporator approx.

Efficient and economical performance of distillation equipment is vital to many processes. and bubble-point temperatures for a mixture that is 40 mole ethylene, 30 mole ethane and 30 mole propane at 1000 kPa. Pressure Temperature Chart 800.497.6805 making your life easier COIL TEMPERATURE CHART INSTRUCTIONS Select design temperature for your evaporator and condenser-Match to approx.