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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.


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