(a) Consider the flash separation process shown in Figure 7.1. If using ASPEN PLUS, solve all three cases using the MIXER, FLASH2, FSPLIT, and PUMP modules and the RK-SOAVE option set for themophysical properties. Compare and discuss the flow rates and compositions for the overhead stream produced by each of the three cases.

(b) Modify case 3 of Exercise 7.1a to determine the flash temperature necessary to obtain \(850 \mathrm{lb} / \mathrm{hr}\) if overhead vapor. If using ASPEN PLUS, a design specification can be used to adjust the temperature of the flash drum to obtain the desired overhead flow rate.

Data From Figure 7.1:-

Transcribed Image Text:

Define Problem Mixer Analyze Results (verify decisions) Develop Process Model h(x,y)=0 Reactor Divider Collect Additional Data & Separator Specify (decide) Generated/Selected Process Flowsheet Solve Model Equations- AE Solver Figure 7.1 The steps involved in process simulation.