The column diameter is to be sized for Figure $6\mathrm{.}1$ using sieve trays with $10\%$ hole area to active area,

and ${24}^{\text{'}\text{'}}$ tray spacing. Use a foaming factor of $1$ and a fraction of flooding of $0\mathrm{.}75.$ Include your marked

capacity factor plot with your work. The column fractionates propane from butane and isobutane. The

$C3$ exits the top of the column and the butanes exit at the bottom. The bottom stage determines the

diameter of the column where:

Liquid mole fractions propane, n$-$butane, i$-$butane, $0\mathrm{.}02,0\mathrm{.}42,0\mathrm{.}56$

Vapor mole fractions: $0\mathrm{.}05,0\mathrm{.}47,0\mathrm{.}48$

Vapor molar flow: $427$kmo$\frac{l}{h}r$; Liquid molar flow: $586$kmo$\frac{l}{h}r$

T $=73$C$,$ Densities: L $498$ kg$/$m$3,$ V $20\mathrm{.}42$ kg$/$m$3$; Viscosities $($CP$)$: L $0\mathrm{.}112,$ V $0\mathrm{.}009$; L surface tension: $5\mathrm{.}84$

dyne$/$cm

The sizing analysis from problem $15$ is to be repeated using $38mm$ metal Pall ring packing using a

fraction of flooding of $0\mathrm{.}75.$ Calculate the expected pressure drop $($in $H2\frac{O}{f}t)$ under operating

conditions. Include your marked $F_C$ chart with your work.