Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 8th Sem New 2180505 Multi Component Distillation Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2180505 Date: 25/11/2019
Subject Name: Multi Component Distillation
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Marks
Q.1 (a) Discuss the advantages of vacuum distillation in detail. 03
(b) Describe. (1) Light key (2) Split key components (3)
Distributed components (4) Adjacent key component
04
(c) Explain the stepwise procedure of Thiele Geddes method for
Multicomponent distillation.
07
Q.2 (a) Discuss the concept of HETP 03
(b) Discuss Extractive Distillation with industrial example. 04
(c) Discuss the selection of Operating pressure for various industrial
distillation columns with examples.
07
OR
(c) Discuss criteria for selection between tray tower and packed tower
with industrial examples.
07
Q.3 (a) What is the application of hegstebeck and gedded equation? Discuss
the equation.
03
(b) Explain the various methods used for calculating the number of
theoretical stages for multicomponent distillation.
04
(c) Discuss the use of heat pump with refrigerant in distillation column
for energy saving
07
OR
(a) Write short note on Optimum reflux ratio. 03
(b) States the advantages and disadvantages of extractive distillation over
azeotropic distillation.
04
(c) Discuss sequencing of multicomponent distillation column also write
an expression to calculate the number of possible sequences.
07
Q.4 (a) Discuss methods of determination of Vapour Liquid Equilibrium data. 03
(b) Discuss about the different flow pattern of liquid in column with
neat sketch.
04
(c) Discuss the stepwise procedure for process design of multicomponent
batch with constant overhead composition.
07
OR
(a) Determine the minimum reflux ratio, minimum number of theoretical
stages required and number of theoretical stages required for the
desired separation for the following system by FUG method. Feed
14
FirstRanker.com - FirstRanker's Choice
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2180505 Date: 25/11/2019
Subject Name: Multi Component Distillation
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Marks
Q.1 (a) Discuss the advantages of vacuum distillation in detail. 03
(b) Describe. (1) Light key (2) Split key components (3)
Distributed components (4) Adjacent key component
04
(c) Explain the stepwise procedure of Thiele Geddes method for
Multicomponent distillation.
07
Q.2 (a) Discuss the concept of HETP 03
(b) Discuss Extractive Distillation with industrial example. 04
(c) Discuss the selection of Operating pressure for various industrial
distillation columns with examples.
07
OR
(c) Discuss criteria for selection between tray tower and packed tower
with industrial examples.
07
Q.3 (a) What is the application of hegstebeck and gedded equation? Discuss
the equation.
03
(b) Explain the various methods used for calculating the number of
theoretical stages for multicomponent distillation.
04
(c) Discuss the use of heat pump with refrigerant in distillation column
for energy saving
07
OR
(a) Write short note on Optimum reflux ratio. 03
(b) States the advantages and disadvantages of extractive distillation over
azeotropic distillation.
04
(c) Discuss sequencing of multicomponent distillation column also write
an expression to calculate the number of possible sequences.
07
Q.4 (a) Discuss methods of determination of Vapour Liquid Equilibrium data. 03
(b) Discuss about the different flow pattern of liquid in column with
neat sketch.
04
(c) Discuss the stepwise procedure for process design of multicomponent
batch with constant overhead composition.
07
OR
(a) Determine the minimum reflux ratio, minimum number of theoretical
stages required and number of theoretical stages required for the
desired separation for the following system by FUG method. Feed
14
2
flowrate is 70 kmol/hr and feed is saturated liquid. Toluene is light
key. Composition of Distillation column streams and average relative
volatilities of all components of feed are as follows:
Q.5 (a) Discuss the criteria for selection of solvent for extractive distillation. 03
(b) Demonstrate kirk bride equation with detail specifications for
finding the feed stage location in multicomponent distillation
column.
04
(c) Discuss energy saving in distillation column by thermally coupled
distillation.
07
OR
(a) Define following terms: Jet flooding, Down comer flooding, Liquid
entrainment.
03
(b) Discuss batch distillation with rectification 04
(c) Discuss the equation tearing procedure for multi component
distillation.
07
*************
FirstRanker.com - FirstRanker's Choice
This post was last modified on 20 February 2020