GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VIII (NEW) EXAMINATION — WINTER 2017
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Subject Code: 2180502 Date: 02/11/2017Subject Name: Petrolium Refining & Petrochemicals
Time:02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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MARKS
Q.1 (a) Define: (i) Octane number (ii) Cetane number (iii) Softening point 03
(b) Write the definition and significance of following: 04
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Flash and Fire Point(c) Discuss about different tests and properties of kerosene in brief. 07
Q.2 (a) Compare the performances of phenol and furfural for the Solvent treatment of lubes. (Three points) 03
(b) Define/explain the following terms in context with petroleum refining. 04
(1) Sour crude (ii) API Gravity (iii) Viscosity index (iv)Aniline point
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(c) Write short notes on Dehydration and desalting of crudes. 07OR
(c) Describe different arrangement of distillation towers in petroleum fractioning with the help-of neat sketches. 07
Q.3 (a) Discuss about ADU for the crude petroleum 03
(b) What is cracking? Discuss the properties of cracked materials 04
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(c) Explain the Catalytic Reforming process in detail. 07OR
Q.3 (a) Listout various types of gases from petroleum. 03
(b) Explain any three types of gases in detail. 04
(c) Explain Merox sweetening process for gasoline treatment. 07
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Q.4 (a) Discuss major engineering problems of Methanol. 03
(b) Discuss properties and uses of Methanol. 04
(c) Describe manufacture of vinyl acetate with neat flow sheet along with its uses. 07
OR
Q.4 (a) Discuss properties and uses of Ethyl glycol. 03
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(b) Discuss properties and uses of LDPE. 04(c) Discuss about the current scenario of world petrochemical industry. 07
Q.5 (a) Discuss properties and uses of Acetic acid. 03
(b) Discuss major engineering problems in vinyl chloride manufacture. 04
(c) Discuss manufacturing process of Styrene with neat flow diagram. 07
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OR(a) Discuss various reactions used in production of ethylene. 03
(b) Discuss major engineering problems involved in production of ethylene. 04
(c) Describe with a neat flow diagram manufacture of Ethylene Oxide. 07
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