Download GTU B.Tech 2020 Winter 6th Sem 2160507 Advance Separation Techniques Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 6th Sem 2160507 Advance Separation Techniques Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VI (NEW) EXAMINATION ? WINTER 2020
Subject Code:2160507 Date:29/01/2021
Subject Name:Advance Separation Techniques
Time:02:00 PM TO 04:00 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


Q.1

Answer the followings.


(a) Enlist application of RO in non-aqueous system.
[3]

(b) State advantages of ceramic membrane over polymeric membranes.
[4]

(c) List out common reasons for flux decline in ultrafiltration. Discuss [7]
concentration polarization phenomena in ultrafiltration.
Q.2 (a) Differentiate between short path distillation and molecular distillation.
[3]

(b) Write short note on properties of supercritical solvent.
[4]

(c) With the help of a detailed flow diagram explain the ROSE process for [7]
deasphalting by propane using supercritical extraction




Q.3 (a) Discuss membrane characteristics for the membrane distillation process.
[3]

(b) Write short note on contact devices used in reactive and catalytic distillation.
[4]

(c) With neat sketch explain construction and working of short path distillation
[7]




Q.4 (a) Discuss Mechanism of transport in nanofiltration.
[3]

(b) Explain zone refining technique for melt crystallization.
[4]

(c) Discuss conventional distillation process for production of ETBE with flow [7]
diagram
Q.5 (a) Differentiate between rate governed and equilibrium separation processes.
[3]

(b) Explain four steps of Pressure Swing Adsorption process.
[4]

(c) Discuss basic principle of pressure swing distillation and its advantages and [7]
disadvantages over azeotropic distillation.




Q.6 (a) Enlist major drawback and advantages of PSA over cryogenic separation [3]
process.

(b) Explain progressive freezing technique for melt crystallization.
[4]

(c) Discuss various types of membrane modules used for membrane separation [7]
processes.
Q.7 (a) Discuss in brief various types of configuration used in membrane distillation.
[3]

(b) List out industrial application of ultrafiltration.
[4]

(c) Explain the working principle of pervaporation and describe hybrid process
[7]
for the production of absolute alcohol.




Q.8 (a) State industrial application of membrane distillation.
[3]

(b) Write advantages and limitations of membrane separation processes over
[4]
conventional separation processes.

(c) Explain with neat sketch general types of membrane reactors.
[7]


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