Exam $(1)$

ChE$-454$

Time: $3$:$00$ hr

Q$1)200$

f and $1m$ dia $mo\frac{l}{h}r$ saturated liquid feed is charged to a distillation column of $20$ stages lbmo$\frac{l}{h}r$ in theter at $29C$ and $265a.$ The flow rate of $-C_1{H}_2$ should not exceed $0\mathrm{.}6$ the bottom. It distillate and the flow rate of $n-C_3{H}_8$ should not exceed $0\mathrm{.}8$lbmo$\frac{l}{h}r$ in and $K$ values is assumed a sharp separation of $C_2{H}_6$ and $C_5{H}_{12}.$ The feed composition

$\backslash$table$[[$Component$,$Feed mole fraction,$K$