Q$3.(10$ Marks$)|CO1,CO2,CO3$

a$)$ In the given reaction system, assume the second reaction is reversible. The main product is $2-$

butanol which produces MEK as a by$-$product. The reactions are as follows:

Step $1$:

Step $2$:

$2-$butene $+H_{2}O$

$2-$butanol

$2-$butanol

$4$

longrightarrow $2-$butanol

Discuss the decision for recycling or recovering the byproduct $($i$.$e$.$ MEK$).$

b$)$ Cyclohexane is produced by the following reaction.

$C_6{H}_6+3H_2>C_6{H}_{12}$

Discuss the design guidelines with respect to decision making at level$-3$ corresponding to the use

of excess amount of reactant.