![]() ![]() The expense of fabrication and erection of this equipment certainly warrants recognition of the quality and the methods as well as extra checking time prior to initiating fabrication. 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 more straightforward, uncomplicated systems are being predicted with excellent accuracy. 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. This chapter discusses the performance of distillation process. Saturation 205 Humidity, Percent Humidity and Dew Point 207 8.2.1 Humidity 207 8.2.2 Relative Humidity and Percent Humidity 210 8.2.3 Dew Point 214 8.3 Humidity Chart 217 8.4 Humid Heat 221 8.5 Wet-bulb Temperature 222 8.6 Adiabatic Saturation Temperature 225 8.7 Humid Volume and Enthalpy 230 8.7.1 Humid Volume 230 8.7.2 Enthalpy of Humid Air. ![]() ![]() 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. Efficient and economical performance of distillation equipment is vital to many processes. The boiling point of (pure) n-hexane at 30 psia is 659.6oR This mixture is flashed at 582.74oR where 60 of the feed is evaporated and at this conditions KiC4 3.1718, KiC5 1.051, KnC6 0.3169 Let isopentane be the reference compound and T 582.74oR be a guessed value for the bubble point calculation (for the above mixture), the next. ![]()
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