Download GTU B.Tech 2020 Summer 8th Sem 2180502 Petroleum Refining And Petrochemicals Question Paper

Subject Code: 2180502

BE - SEMESTER-VIII EXAMINATION - SUMMER 2020

Subject Name: Petroleum Refining & Petrochemicals

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Time: 02.30 pm to 05.00 pm

Total Marks: 70

Instructions:

1. Attempt all questions.
2. Make suitable assumptions wherever necessary.

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3. Figures to the right indicate full marks.

1. Q.1

   1. (a) Define: (i) Cracking (ii) Vis breaking (iii) Catalytic reforming (03)
   2. (b) Write down various properties and uses of Poly vinyl chloride (PVC). (04)
   3. (c) Enlist various treatment techniques of gasoline. Explain Lead Doctoring treatment technique of gasoline in detail. (07)

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2. Q.2

   1. (a) Differentiate: Atmospheric Distillation Unit(ADU) and Vacuum Distillation Unit(VDU) of crude petroleum (03)
   2. (b) Write down various properties and uses of Isopropanol. (04)
   3. (c) Define Following: (07) (i) Octane number (ii) Flash & Fire point (iii) Smoke point (iv) Aniline point (v) Pour point (vi) Cetane number (vii) Softening point

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   OR

   1. (a) Describe various types of gases evolved from fractionation of crude petroleum with their composition. (07)

3. Q.3

   1. (a) Discuss in brief: Role of crude oil in global economy (03)

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   2. (b) Discuss major engineering problems associated with manufacturing process of methanol. (04)
   3. (c) Explain with neat flow diagram: Manufacturing process of ethylene dichloride (07)

   OR

   1. (a) Give classification of crude oil. (03)
   2. (b) Write down various properties and uses of formaldehyde. (04)

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   3. (c) Explain with neat flow diagram: -Manufacturing process of vinyl chloride monomer (VCM). (07)

4. Q.4

   1. (a) Which heavy fractions remain after fractionation of crude petroleum? List out various important properties of heavy fractions. (03)
   2. (b) Enlist various pipe still heater used for heating of crude petroleum. Explain any one in brief. (04)

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   3. (c) Explain with neat flow diagram: Manufacturing process of Polypropylene (07)

   OR

   1. (a) List out various distillation characteristics of crude oil. Discuss any one in brief. (03)
   2. (b) Discuss in brief: Pumping of waxy crude (04)
   3. (c) Explain with neat flow diagram: Manufacturing process of Styrene Butadiene Rubber (SBR) (07)

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5. Q.5

   1. (a) Which are the different types of reflux methods for distillation of petroleum? Explain any one in brief. (03)
   2. (b) Explain in brief: BTX separation (04)
   3. (c) Define thermal cracking. Explain Dubb's two coil process of thermal cracking in detail. (07)

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   OR

   1. (a) What is dewaxing of Lube Oil? Enlist various dewaxing processes of lube oil. (03)
   2. (b) Discuss major engineering problems associated with manufacturing process of Phthalic anhydride. (04)
   3. (c) Define catalytic cracking. Explain Fluid Catalytic Cracking process in detail. (07)

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