Exercise $2($Process Involving Reaction and Separation$)$

Toluene is produced from $n-$heptane by dehydrogenation over a $C{r}_2{O}_3$ catalyst:

$C{H}_{3}C{H}_{2}C{H}_{2}C{H}_{2}C{H}_{2}C{H}_{2}C{H}_3{C}_6{H}_{5}C{H}_3+4H_2$

The toluene production process is started by heating $100$kmo$\frac{l}{h}n-$heptane from $18C$ to $427C$ in a heater. It is fed to a catalytic reactor, which operates isothermally and converts $15$mol$\%$ of the $n$ heptane to toluene. Its effluent is cooled to $18C$ and fed to a separator $($flash$).$ Assuming that all of the units operated at atmospheric pressure, determine the species' flow rates in every stream.

Figure $2\mathrm{.}1$ Hysys Flow diagram

Using the process simulation software $($Aspen Plus or Hysys$)$:

a$)$ Start the software and click new and then choose blank simulation

b$)$ Add the components

c$)$ Select Peng Robinson method$/$package

d$)$ Draw and label the process flow diagram $($PFD$)$ by selecting a heater, reactor, a cooler, and a flash separator and connect them with material streams $($Refer to figure $2\mathrm{.}1)$

e$)$ Specify the feed material stream, the heater block, reactor block, cooler block and separator block.

f$)$ Also in reactor block specification, insert the required reaction and the fractional conversion. Make sure you insert the correct coefficient for each reactant and product

g$)$ Assume the separator have zero temperature drop.

h$)$ Run the simulation when all the required input is completed.

i$)$ In the stream result, arrange the stream in the following manner: Feed, RFeed, RProd, SFeed, Vapor and Liquid.