Page 15 - Process simulation and control using Aspen

8 PROCESS SIMULATION AND CONTROL USING ASPEN

1 .3 .2 Simulation of a Flash Drum

Problem statement
A 100 kmol/hr feed consisting of 10, 20, 30, and 40 mole% of propane, rc-butane,
n -pentane, and n-hexane, respectively, enters a flash chamber at 15 psia and 50oF.
The flash drum (Flash2) is shown in Figure 1.4 and it operates at 100 psia and 200oF.
Applying the SYSOP0 property method, compute the composition of the exit streams.
3 -

FLASH

FIGURE 1.4 A flowsheet of a flash drum.
Simulation approach
From the desktop, select Start button followed by Programs, AspenTech, Aspen
Engineering Suite, Aspen Plus Version and Aspen Plus User Interface. Then choose
Template option in the Aspen Plus Startup dialog (Figure 1.5).

I 1- l-MHM*

FIGURE 1.5
As the next window appears after hitting OK in the above screen, select General
with English Units (Figure 1.6).

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