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

Enrollment No.

GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER-VI (NEW) EXAMINATION - WINTER 2020

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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.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 Answer the followings.

1. Enlist application of RO in non-aqueous system. [3]
2. State advantages of ceramic membrane over polymeric membranes. [4]

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3. List out common reasons for flux decline in ultrafiltration. Discuss concentration polarization phenomena in ultrafiltration. [7]

Q.2

1. Differentiate between short path distillation and molecular distillation. [3]
2. Write short note on properties of supercritical solvent. [4]
3. With the help of a detailed flow diagram explain the ROSE process for deasphalting by propane using supercritical extraction [7]

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Q.3

1. Discuss membrane characteristics for the membrane distillation process. [3]
2. Write short note on contact devices used in reactive and catalytic distillation. [4]
3. With neat sketch explain construction and working of short path distillation [7]

Q.4

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1. Discuss Mechanism of transport in nanofiltration. [3]
2. Explain zone refining technique for melt crystallization. [4]
3. Discuss conventional distillation process-for production of ETBE with flow diagram [7]

Q.5

1. Differentiate between rate governed and equilibrium separation processes. [3]

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2. Explain four steps of Pressure Swing Adsorption process. [4]
3. Discuss basic principle of pressure swing distillation and its advantages and disadvantages over azeotropic distillation. [7]

Q.6

1. Enlist major drawback and advantages of PSA over cryogenic separation process. [3]
2. Explain progressive freezing technique for melt crystallization. [4]

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3. Discuss various types of membrane modules used for membrane separation processes. [7]

Q.7

1. Discuss in brief various types of configuration used in membrane distillation. [3]
2. List out industrial application of ultrafiltration. [4]
3. Explain the working principle of pervaporation and describe hybrid process for the production of absolute alcohol. [7]

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Q.8

1. State industrial application of membrane distillation. [3]
2. Write advantages and limitations of membrane separation processes over conventional separation processes. [4]
3. Explain with neat sketch general types of membrane reactors. [7]

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