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A feed composed of a binary mixture of methanol and water (55.0 mole % methanol) is sent to a system of two flush drums hooked
A feed composed of a binary mixture of methanol and water (55.0 mole % methanol) is sent to a system of two flush drums hooked together. The vapor from the first drum is cooled through a total condenser, and then is fed to the second flash drum. Both drums operate at a pressure of 1.0 atm and are adiabatic. The feed rate to the first drum is 1,000 kmoles/hr. We desire a liquid product from the first drum that is 30.0 mole % methanol. The second drum operates at a fraction vaporized of (V/F)2=0.25. Temperature versus liquid, vapor mole fraction of methanol is given in the figure below. a. Sketch the process labeling the different streams. b. Find the following for the first drum: i) vapor mole fraction y ii) fraction vaporized (V/F). iii) vapor flow rate iv) temperature of the drum
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