Determine the number of theoretical stages
Course:- Chemical Engineering
Reference No.:- EM13943004

Assignment Help
Assignment Help >> Chemical Engineering

In the manufacture of methyl ethyl ketone from butanol, the product is separated from unreacted butanol by distillation. The feed to the column consists of a mixture of 0.90 mol fraction MEK, 0.10 mol fraction 2-butanol, with a trace of trichloroethane.

The feed rate to the column is 20 kmol/h and the feed temperature 35 °C. The specifications required are: top product 0.99 mol fraction MEK; bottom product 0.99 mol fraction butanol.

Design a column for this separation. The column will operate at essentially atmospheric pressure. Use a reflux ratio 1.5 times the minimum.

a. Determine the minimum reflux ratio.

b. Determine the number of theoretical stages.

c. Estimate the stage efficiency.

d. Determine the number of actual stages needed.

e. Design a suitable sieve plate for conditions below the feed point

Equilibrium data for the system MEK -2-butanol, mol fractions MEK:

Put your comment

Ask Question & Get Answers from Experts
Browse some more (Chemical Engineering) Materials
3.5 Calculate the reactor volumes required to process I043 liter/min of 3 molar .4 in the aqueous reaction A -+ 2B for PFTR and CSTR reactors. (a) 90% conversion, k 2 min-I (b
Aniline is produced by the hydrogenation of nitrobenzene. The reaction takes place in a fluidized bed reactor operating at 270 °C and 20 bar. The excess heat of reaction is
If the duct is wrapped with a 25-mm-thick layer of 85% magnesia insulation (k = 0.050 W/m· K) having a surface emissivity of ε = 0.60, what are the duct wall temperature, th
Obtain the transformation matrix to transform a system in phase variable form to controller form. Prove that the transformation matrix will also perform the reverse transfor
Suppose the rails in Figure 10.5a have a resistance r[Ω/m] each. The bar is perfectly conducting. Calculate the current in the resistor R at a time t if the bar starts at t
To be satisfactory quality the ratio of 'A' to 'B' in the mixture must be 100 to 1or higher. 'D' reacts with both 'A' and 'B' as follows;A + D?R-rA= 21 CACDB + D?S-rB= 147 C
A flat slab of Douglas fir wood 50.8 mm thick containing 30 wt% moisture is being dried from both sides (neglecting edges and ends). The equilibrium moisture content at the su
Three identical impedances of 30 ∠30° Ω are connected in delta to a three-phase 173-V system by conductors that have impedances of 0.8 + j0.6 Ω each. Compute the magnitude o