Question

In: Other

In a continuous distillation of a mixture of 40% A and 60% B with a flow...

In a continuous distillation of a mixture of 40% A and 60% B with a flow rate of 10,000 kmol / hour, the volatile component composition is decomposed to 90% in distillate and 4% in boiler. Feeding is ¼ steam, ¾ liquid and partial condenser is used in the system.
a) Minimum ideal number of steps,
b) Minimum riflax rate,
c) Ideal stage number when the actual riflax ratio is 4.5 times the minimum value
d) Enrichment and peeling regions liquid and vapor flow rates (L, V, ?̅, ?̅),
e) If the average efficiency of the column is 0.5, the number of real steps,
f) Find the actual number of steps when n kad = 0.65

x 0 0.05 0.15 0.30 0.50 0.70 0.88
y 0 0.40 0.60 0.70 0.75 0.80 0.90

Solutions

Expert Solution

The required material balances are applied on the system.

The McCabe thiele diagram is used for the calculations of ideal number of stages (minimum number of stages and the actual number).

The procedure and required calculations are provided below.


Related Solutions

A binary mixture of benzene and toluene will be separated by continuous distillation. The mixture consists...
A binary mixture of benzene and toluene will be separated by continuous distillation. The mixture consists of 20% mol of benzene and 80% mol of toluene at the bubble point of 91ºC. The binary mixture is available at 100 mol h-1 and the separation should deliver a distillate product that has a concentration of 90% mol of benzene and that contains half of the benzene in the feed stream. a) Plot the equilibrium line for benzene. b) Determine the minimum...
A 60% mole Benzene and 40% mole Toluene mixture is sent to a distillation column, where it is separated into two equal streams.
A 60% mole Benzene and 40% mole Toluene mixture is sent to a distillation column, where it is separated into two equal streams. Calculate the composition of each stream, if the amount of benzene out of the top is 3 times greater than out the bottom.
A mixture of n-heptane (A) and ethyl benzene (B) is to be separated in a distillation...
A mixture of n-heptane (A) and ethyl benzene (B) is to be separated in a distillation column operated at 1 atm. The feed flowrate is 300 mol/h and contains 40 mol% n-heptane. 60 % of the feed is liquid. It is required to obtain an overhead product containing 96 mol% n-heptane and a bottom product containing 5 mol% n-heptane. Find the following: a) The distillate and bottom flowrates b) The minimum reflux ratio c) The minimum number of stages d)...
The mixture of A (LK equivalent) and B is to be separated through the distillation column...
The mixture of A (LK equivalent) and B is to be separated through the distillation column connected with the total condenser and the partial reboiler. When the specified-liquid feed (F; 100 mol/h) containing 50 mol% of A is supplied and is operated through the design conditions below. The composition of A in distillate(D) was 0.96 and the composition of A in bottom(B) was 0.18 (a) Calculate Total equilibrium units (including partial reboiler) (b) Calculate the location of the raw material...
-Working of batch and continuous stirrer tankreactor And plug flow reactor - examples of distillation components...
-Working of batch and continuous stirrer tankreactor And plug flow reactor - examples of distillation components - Definition if fluid package & five example of fluid package
A distillation column receives a feed that is 40 mole % n-pentane and 60 mole %...
A distillation column receives a feed that is 40 mole % n-pentane and 60 mole % n-hexane. The feed is saturated liquid at 2,500 lbmol/hr. The column is at 1 atm. A distillate that is 97 mole % n-pentane is desired. A total condenser is used. The reflux is a saturated liquid. The external reflux ratio is L0/D = 3. The bottoms from the partial reboiler is 2 mole % n-pentane. Determine the intersection (xq, yq) of the q-line with...
A mixture of hydrocarbons is separated with two distillation columns in series. This mixture, containing 20...
A mixture of hydrocarbons is separated with two distillation columns in series. This mixture, containing 20 mass% ethane, 40 mass% propane and 40 mass% butane, is fed to the first column a rate of 100 moles per hour. The overhead product from the first column contains 95 mole% ethane, 4 mole% propane and 1 mole% butane. The bottoms product from the first column is sent to the second column for further separation. The composition of the overhead product from the...
a. A mixture of 60 mol % n-proplycyclohexane and 40 mol % n-propylbenzene is distilled through...
a. A mixture of 60 mol % n-proplycyclohexane and 40 mol % n-propylbenzene is distilled through a simple distillation apparatus; assume that no fractionation occurs during the distillation. The boiling temperature is found to be 157 °C (760 torr) as the first small amount of distillate is collected. The standard vapor pressures of n-propylcyclohexane and n-propylbenzene are known to be 769 torr and 725 torr, respectively, at 157.3 °C. Calculate the percentage of each of the two components in the...
1. The probability of event A is 60%, the probability of event B is 40%, and...
1. The probability of event A is 60%, the probability of event B is 40%, and the probability of either A or B is 65%. What is the probability of events A and B simutaneously? 2. 50% of items are Type A, 30% are Type B, and 20% are Type C. each type is broken up into V1 and V2. Type A is 80% V1, Type B is 60% V1, and Type C is 30% V1. If a randomly selected...
A mixture of propane, butane and pentane are to be separated in a distillation column. Feed=...
A mixture of propane, butane and pentane are to be separated in a distillation column. Feed= Propane - 20 wt % Butane - 50 wt% Pentane - 30wt%. Top=Propane – 93 wt% Butane - 7 wt% Pentane – 0 wt%. Bottom=Propane - ?? wt % Butane - ?? wt% Pentane - 38 wt%. The weight % values shown are compositions. The total feedrate is 5000 kg hr-1. ALL the pentane is recovered in the bottom product, (comprising 38 wt% of...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT