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ASPEN PLUS SIMULATION OF REACTOR MODELS 55

2 .2 ASPEN PLUS SIMULATION OF A RStolc MODEL

Problem statement
Styrene is produced by dehydrogenation of ethylbenzene. Here we consider an
irreversible reaction given as:

CgHs-C2H5 -> CgHs-CH - CH2 + H2
ethylbenzene styrene hydrogen

Pure ethylbenzene enters the RStoic reactor with a flow rate of 100 kmol/hr at 260oC
and 1.5 bar. The reactor operates at 250 oC and 1.2 bar. We can use the fractional
conversion of ethylbenzene equals 0.8. Using the Peng-Robinson thermodynamic method,
simulate the reactor model.

Simulation approach
As we start Aspen Plus from the Start menu or by double-clicking the Aspen Plus icon
on our desktop, first the Aspen Plus Startup dialog appears (see Figure 2.1). Choose
Template option and then click OK.

iaj _1_J __J *j rv.Mft, I-Hid 3 I I l-J±]-J _J

_ J

FIGURE 2.1
As the next window pops up (see Figure 2.2), select General with Metric Units and
hit OK button.

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