D1.* We have

10kmo(l)/(h)

of a saturated liquid feed that is

40mol%

benzene and

60mol%

toluene. We desire a distillate composition that is 0.992 mole fraction benzene and a bottoms that is 0.986 mole fraction toluene (note units). CMO is valid. Assume constant relative volatility with

\\\\alpha _(BT)=

2.4. Reflux is returned as a saturated liquid. The column has a partial reboiler and a total condenser.\ a. Use the Fenske equation to determine

N_(min)

.\ b. Use the Underwood equations to find (L/D) min-\ c. For

(L)/(D)=1.1((L)/(D))_(min)

, use the previous results and the Gilliland correlation to estimate the total number of stages and the optimum feed stage location.\

KEY: {(:[N_(min)

]

=10.37,NF_(min)=

[

5.97]),(R_(min)=1.75;N~~25@1.15R_(min).):}

D1.* We have 10kmol/h of a saturated liquid feed that is 40mol% benzene and 60mol% toluene. We desire a distillate composition that is 0.992 mole fraction benzene and a bottoms that is 0.986 mole fraction toluene (note units). CMO is valid. Assume constant relative volatility with BT= 2.4. Reflux is returned as a saturated liquid. The column has a partial reboiler and a total condenser. a. Use the Fenske equation to determine Nmin. b. Use the Underwood equations to find (L/D) )min. c. For L/D=1.1(L/D)min, use the previous results and the Gilliland correlation to estimate the total number of stages and the optimum feed stage location. KEY:NminRmin=10.37,NFmin=5.97=1.75;N25@1.15Rmin