Q $3.$ Consider the dehydrogenation of isopropyl alcohol $($IPA$)$ process to produce acetone. The

following reaction takes place.

IPA$$ Acetone $+H_2$

The reaction is carried out at $572F$ and $1$ atm pressure $($vapor phase process$).$ In petrochemi$-$

cal complexes, IPA is produced by hydration of propylene. IPA forms an azeotrope with water

$(70$mol$\%$ IPA$).$ For the above acetone manufacturing process, this azeotropic mixture is used

as a feedstream. Similarly, any recycle IPA is also an azeotropic mixture $($there is no need to

undertake azeotrope separation$).$ Co$-$product hydrogen is used as a fuel in the manufacturing

complex.

Consider that the desired production rate for acetone is $(50+5a)mo\frac{l}{h}.$ Also consider that

the reactor conversion is $(0\mathrm{.}75+0\mathrm{.}02b).$ Here, $a$ is the last digit in your roll number and $b$

is the second$-$last digit in your roll number. For example, if your roll number is $170020031,$

$a=1$ and $b=3.$ For this process,

$($a$)$ Develop Level $2,3$ and $4$ flowsheets for the process. You are required to discuss the

relevant decisions leading to these flowsheets.

$($b$)$ Perform appropriate material balance and compute level $2$ economic potential.

$($c$)$ Consider reactor inlet temperature of $572F.$ The heat of reaction is $25800Bt\frac{u}{m}ol$ and

$c_p$ of the azeotropic feed is $22Bt\frac{u}{m}o\frac{l}{F}.$ What heat transfer policy should be used

$($adiabatic$/$isothermal$/$external diluent$)?$

$($d$)$ If no vapor recovery system is implemented, compute the loss of product acetone leaving

with fuel hydrogen. You can use short$-$cut calculations.

You can use the following data for calculations.

This is the cost of wastewater treatment.