Question

b. The following table of data was obtained from a material balance over a proposed distillation process receiving a saturated liquid feed Composition (mol fraction) Component Volatility Feed Top Bottom 1 4.2 0.04 0.09 2 3.1 0.15 0.34 3 2.7 0.28 0.54 4 2.5 0.19 0.03 5 1.8 0.21 0.38 6 1.1 0.13 0.23 i. Using this data select suitable heavy and light keys (2 marks) ii. Confirm that Underwood's $\phi = 1.074$ by quoting the residual of Underwood's first equation (7 marks) iii. Calculate the minimum reflux ratio (3 marks) iv. Calculate the minimum number of plates (3 marks) V. Comment on any assumptions made or implied in this analysis (2 marks)

          b.
The following table of data was obtained from a material balance over a
proposed distillation process receiving a saturated liquid feed
Composition (mol fraction)
Component	Volatility	Feed	Top	Bottom
1	4.2	0.04	0.09
2	3.1	0.15	0.34
3	2.7	0.28	0.54
4	2.5	0.19	0.03
5	1.8	0.21	0.38
6	1.1	0.13	0.23
i.
Using this data select suitable heavy and light keys
(2 marks)
ii.
Confirm that Underwood's \(\phi = 1.074\) by quoting the residual
of Underwood's first equation
(7 marks)
iii.
Calculate the minimum reflux ratio
(3 marks)
iv. Calculate the minimum number of plates
(3 marks)
V.
Comment on any assumptions made or implied in this analysis
(2 marks)

$b. The following table of data was obtained from a material balance over a proposed distillation process receiving a saturated liquid feed Composition (mol fraction) Component Volatility Feed Top Bottom 1 4.2 0.04 0.09 2 3.1 0.15 0.34 3 2.7 0.28 0.54 4 2.5 0.19 0.03 5 1.8 0.21 0.38 6 1.1 0.13 0.23 i. Using this data select suitable heavy and light keys (2 marks) ii. Confirm that Underwood's ϕ = 1.074 by quoting the residual of Underwood's first equation (7 marks) iii. Calculate the minimum reflux ratio (3 marks) iv. Calculate the minimum number of plates (3 marks) V. Comment on any assumptions made or implied in this analysis (2 marks)$

Added by Paul M.

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